Skip to main content

Ernst Haeckel, Nikolai Miklucho-Maclay and the racial controversy over the Papuans

Abstract

Background

The ā€œGerman Darwinā€ Ernst Haeckel (1834ā€“1919) was a key figure during the first ā€œDarwinian revolutionā€œ, a time when the foundations of the modern evolutionary theory were laid. It was Haeckel, who crucially contributed to the visualization of the Darwinian theory by designing ā€œgenealogical-treesā€ illustrating the evolution of various species, including humans. Although the idea of explaining human evolution by natural selection belongs to Darwin, Haeckel was the first who attempted to create a new exact anthropology based on the Darwinian method.

Discussion

Trying to immediately reconstruct human evolution proceeding from the description of modern populations led Haeckel to the views which, from the contemporary perspective, are definitely racist. Haeckel created racial anthropology intending to prove human origins from a lower organism, but without the intention of establishing a discriminatory racial praxis. Although hierarchical in its outcome, the Haeckelian method did not presuppose the necessity of a racial hierarchy of currently living humans. It is crucial to grasp in what sense Haeckelā€™s theoretical explorations in human evolution were racist, and in what sense they were not. Our argument flows as follows. One of Haeckelā€™s pupils was the Russian ethnographer, anthropologist and zoologist Nikolai Nikolajewitsch Miklucho-Maclay (1846ā€“1888). Maclay and Haeckel worked closely together for several years; they traveled jointly and Maclay had enough time to learn the major methodological principles of Haeckelā€™s research. Yet in contrast to Haeckel, Maclay is regarded as one of the first scientific anti-racists, who came to anti-racist views using empirical field studies in Papua-New Guinea.

Conclusions

We claim that while conducting these studies Maclay applied scientific principles to a significant extent acquired from Haeckel. The paper contributes to the view that Haeckelā€™s theoretical racism did not follow the Darwinian method he used.

Background

ā€œI believe, for instance, that Mr. Haeckel is the worst and the most harmful of all I knowā€Footnote 1.

ā€œYou were the first, who, from your own experience, clearly demonstrated that humans are everywhere humans, that they are friendly, social creaturesā€Footnote 2.

Ernst Haeckel defended and developed the Darwinian theory with a passion and energy like nobody else on the continent [18, 24, 35, 37, 48, 54, 57]. Yet, he was influential not only in Germany but in non-German speaking countries as well [56, 58]. Haeckel created a conceptual framework within which the majority of Darwinians worldwide worked over decades. Contemporary evolutionary theory is unthinkable without notions coined by Haeckel such as ā€œphylogenyā€, ā€œontogenyā€, ā€œphylumā€, ā€œphylogenetic treeā€, ā€œgastraea theoryā€ or ā€œecologyā€ [22, 23, 25, 38, 40, 47, 67, 70] (Fig. 1).

Fig. 1
figure 1

a and b Diagram - Haeckelā€™s overview of zoology, where he introduced his famous concepts of ontogeny, phylogeny and ecology. The scheme incorporates both the ā€˜staticā€™, and ā€˜dynamicā€™ aspects of animal life, where ā€˜staticā€™ is used to describe structures and forms (morphology), and ā€˜dynamicā€™ deals with a state of change. Translated by Levit and Hossfeld [40] and reproduced by the authors with slight changes from the original scheme in: Haeckel 1866, vol. 1, p. 238

Moreover, his theories were encouraged and admired by Darwin himself. Ernst Haeckel is, without doubt, a crucial figure in the growth of Darwinian thought in the nineteenth century. As Robert Richards emphasized: ā€œMore people at the turn of the century learned of evolutionary theory from his pen than from any other source, including Darwinā€™s own writingsā€ [56]. Haeckelian (biological) anthropology was part of his Darwinian project and played an especially important role because of its immediate political concerns for a broad audience [19, 49] (Fig. 2).

Fig. 2
figure 2

Ernst Haeckel and his ā€œFamulusā€ Pohle with a Gorilla gigas skeleton in 1898 in Jena (Ernst Haeckel im Bilde. Hrsg. Walther Haeckel. Berlin: Georg Reimer, 1914)

Our intention in the present paper is to demonstrate that Haeckel created an anthropology that looks extremely racist from the contemporary viewpoint. It would even look racist from the viewpoint of some of his contemporaries and even his pre-Darwinian predecessors in biological anthropology. Already Johann Friedrich Blumenbach (1752ā€“1840) stressed the essential sameness of the human species [59]. Alexander von Humboldt (1769ā€“1859) spoke in his famous Cosmos about ā€œthe unity of human raceā€ and provided several arguments in favour of this view including the form of the skull [28].

Haeckel proceeded from the assumption that humanity consists of various human species being on various stages of phylogenetic evolution. Some of these species were closer to a hypothetical pre-human ancestor, whereas some of them were more evolutionarily advanced. The division into higher and lower races is at the core of any discriminatory racism. We claim, however, that Haeckel was a Darwinian thinker, and that his method was not predestined to bring about discriminatory racial schemes. His racism followed from the lack of empirical evidence and from the temptation to explain human evolution prematurely, instead of waiting for reliable data. Applying the same method, one could have come to principally different results with access to better field studies information.

The stationary, long-term anthropological and ethnographic studies were conducted by Haeckelā€™s immediate pupil, the Russian traveler Nikolai Miklucho-Maclay (Miklucho-Maclayā€™s originally Russian name allows various spelling in other languages such as Mikloucho, Miklouho, Mikluho, Mikluha, etc. We use here the spelling he used in initial German publications). Maclay remains relatively unknown in contemporary English-speaking evolutionary anthropology and history of biosciences. English language publications on Maclay ā€œare mostly translations of Miklucho-Maclayā€™s archival texts from Russian, with a scholarly commentaryā€ [64]. At the same time, Maclayā€™s significance cannot be overestimated. He was arguably one of the first scientists who empirically demonstrated the unity of humanity by disproving the dominating racial anthropologies of Haeckel, Fritz MĆ¼ller (1822ā€“1897) and other influential theorists. This is at odds with his humble status in current historiography. Maclay was not only a descriptive scientist. He tried to convert his discoveries into political actions struggling against racial prejudices of his time, claiming equal rights of indigenous populations of Melanesia. The intriguing detail of this story is that Maclay came to his anti-Haeckelian and anti-racist concept by applying essentially the Haeckelian method (Fig. 3).

Fig. 3
figure 3

Portrait of Maclay in Weimar (Germany). Photo with his signature (on the backside)Ā as a present to Petr Semenov, 1870. RGO, FileĀ 6, List 3, ā„– 20

Discussion

Here we outline Haeckelā€™s theory of human species and specify the place of the Papuans in it. We then demonstrate how Maclay jeopardized the whole Haeckelā€™s racial anthropology by empirically demonstrating that the Papuans were not an inferior human species and thus contributed the concept of the unity of humanity.

Haeckelā€™s racial anthropology

When Darwin introduced his theory of evolution, one of the sharpest controversies arose around the origin of man. Haeckel was convinced early on that Darwinian principles are applicable to human evolution. Having only two fossil remnants (Neanderthalensis and Pithecanthropus) at his disposal, Haeckel tried to reconstruct human phylogeny as well as global migration of ancient humans [40]. Darwin reacted favorably to Haeckelā€™s anthropological publications. In the introduction to The Descent of Man [5] he wrote referring to Haeckelā€™s NatĆ¼rliche Schƶpfungsgeschichte [The History of Creation] [13]: ā€œAlmost all the conclusions at which I have arrived I find confirmed by this naturalist, whose knowledge on many points is much fuller than mineā€. Praising his contemporaries and predecessors, who shared his view that man descended from a hypothetical extinct lower form, Darwin enumerated ā€œseveral eminent naturalists and philosophersā€, but emphasized a superior role of Haeckel, by saying that this conclusion was maintained ā€œespecially by HƤckelā€ [5]. Darwin even admitted that if Haeckelā€™s work had appeared before his The Descent of Man had been written, he ā€œshould probably never have completed itā€ [55].

Haeckel was occupied with human phylogeny for 45ā€‰years, beginning with the Stettiner Vortrag (Speech in the city of Stettin) in 1863 and ending with Unsere Ahnenreihe (Our ancestors) (Progonotaxis Hominis) in 1908 [19, 40] (Fig. 4). In contrast to Darwin, who merely postulated the descent of man from an ape-like ancestor, Haeckel tried to reconstruct and visualize the exact pathways of human origin. For him, it was a task of a very special mission: ā€œOf all the individual questions answered by the Theory of Descent, of all the special inferences drawn from it, there is none of such importance as the application of this doctrine to Man himselfā€ [15]. But these efforts made him into a highly controversial figure. Pushing forward a hypothesis that is widely accepted today, that several human species co-existed on Earth, Haeckel suggested that the alternative human species may still exist, and proposed his famous ā€œphylogenetic treesā€ to capture this idea.

Fig. 4
figure 4

Haeckel in 1898 with the skull (Private Archive of Uwe Hossfeld)

It wasĀ these trees that made Haeckel vulnerable to accusations of racism. He was even regarded as complicit in Nazi biology later on, but, in fact, despite isolated attempts to use his fame to support Nazi ideology, his doctrine was seen by the Nazis as unsuitable for their purposes [19, 55, 62]. The same would hold for Haeckelā€™s closest followers after his death, even those seeking to render Haeckel attractive to Nazi ideology [62]. Although there are several explanations for it possible, his ā€œphylogenetic treesā€ were hardly suitable for actual racial discrimination because of their speculative nature whose provisional character Haeckel himself many times emphasized [22, 23, 40]. But it was also because his racial hierarchy did not correspond to conventional racism, since he placed, for example, Jews and Berbers (Hamosemites) on the highest higherarchialĀ species level.

Yet, from the contemporary viewpoint, Haeckelā€™s ā€œspeculationsā€ (his own words) are definitely racist in the strict technical sense, since he admitted that the Earth, still in his own time, was populated by several human races so different from one another that they may even be considered to be different species positionable within a hierarchy. Again, Haeckel had only a few fossil data at his disposal, and reaffirmed continuously that his ā€œtreesā€ were provisional in nature. It is certainly true that (and in contrast to Darwin) Haeckel overemphasized progressive evolution, and that his diagrams were at the core of his attempts to explain his evolutionary paradigm [6] (Figs. 5 and 6). But the genuine intention of Haeckelā€™s racial diagrams was not to create a ready-made discriminatory scheme of hierarchical relations between human species, but rather to suggest hypotheses moving biological anthropology towards an exact Darwinian science based on comparative anatomy, phylogenetic and ontogenetic studies [20, 21, 40]. Where Darwin was cautious in making definitive claims, Haeckel rushed to establishing a new phylogeny of human species, and to prove the very fact of human evolution. The shortest way to prove it would be to demonstrate that even currently living humans are at various evolutionary stages. This led to a crucial discrepancy between Darwin and Haeckel: ā€œAs proponents of common descent, both had to reject polygenism in favor of monogenism, but they differed in how far back they would place the last common ancestor of all the races and whether they would count it as already humanā€ [9]. Haeckel placed the last common ancestor further back in time than Darwin.

Fig. 5
figure 5

English version of the human pedigree of the 12 species (from Haeckel, The History of Creation, 1887, p. 309)

Fig. 6
figure 6

Genealogical-tree with 12 human species and minor races (NatĆ¼rliche Schƶpfungsgeschichte, 1889, p. 727)

Systematic efforts to establish Darwinian anthropology were already made by Haeckelā€™s first scientific account of Darwinism, in the double-volumed Generelle Morphologie (Haeckel 1866). Here Haeckel clearly stated that anthropology becomes a science only in the light of evolutionary biology. He defined anthropology as a general biological science of humans, and a branch of zoology subdivided into human morphology and human physiology. Two years later in his NatĆ¼rliche Schƶpfungsgeschichte (German original published first in 1868; in English translation, e.g.: The History of Creation, Vol. I 1880; Vol. II 1887) Haeckel clearly stated that the origin of man can ultimately be traced back to Monera, and specifically that ā€œMan has developed gradually, and step by step, out of the lower Vertebrata, and more immediately out of Ape-like Mammalsā€ [15]. He also introduced the idea of Pithecanthropus alalus (speechless man) originating from Asian man-like apes (Catarrhini) as a hypothetical link between Anthropoides and the actual ā€œspeaking- or genuine manā€ (Homines) [15, 32]. Human origin from Catarrhini was secured by the argument that the anatomical differences between Man and the most human-like apes (Orangutan, Gorilla, Chimpanzee) are less than the differences between the latter and the lowest stages of Catarrhini such as Baboon. Altogether a human ancestral ladder (ā€žAhnenreihe des Menschenā€œ) consisted of 22 steps with Pithecanthropus in 21st place and ā€œgenuine humansā€ on top. Aboriginal Australians and Papuans were categorized by Haeckel as the nearest living relatives of the ancestral stages.

Humanity consisted for Haeckel of 12 species, subdivided into 36 races. The human species were, among others, presented in their pedigree hierarchically from ā€œlowerā€ (more like apes) to ā€œhigherā€ (higher mental development), with Indo-Germanians on the highest level, and Hottentots, Papuans and Aboriginal Australians in the lowest part of the pedigree. Haeckelā€™s genuine motivation for arranging human races into ā€œlower-higherā€ relations was his attempt to apply human genealogy as evidence for the animal origin of man. He looked for a resemblance ā€œbetween the lowest woolly-haired men, and the highest man-like apesā€ [15] as evidence for human evolution. The latter led to the controversy between Haeckel and his Russian pupil Nikolai N. Miklucho-Maclay who, by way of empirical ethnographic studies in New Guinea, demonstrated the absence of significant differences between human races and the unity of all humans. Maclay spent several years among Papuans and came to the conclusion that both Haeckelā€™s morphological descriptions (for example, the character of their hair) and his estimations of their intellectual abilities were wrong.

Despite believing in 12 human species co-existing on Earth (Fig. 7), Haeckel was not a genuine polygenist; he did not believe in the separate creation of human races, advocating instead a monophyletic origin of all human species on a hypothetical continent Lemuria in the Indian Ocean. In that sense he remained fully a Darwinian anthropologist. The major question for Haeckel, Darwin and other early anthropologists was not the monophyletic origin of man. The question was how far back they would place the last common ancestor of all human races or species, and therefore how human-like was this hypothetic ancestor? Haeckel tended to give human species more time to diverge (definitely more than Darwin), but they nevertheless diverged already around the human level. Considering Haeckelā€™s disregard of what was then a wide-spread racial prejudice, his views were intended to be progressive, given that he aimed to base his racial views on Darwinian science. The Papuans played a very special role in Haeckelā€™s story as they were in the lowest part of the pedigree and represented, so to say, an evolutionary dead-end. As will be shown below, the Papuans had a very significant place in the scientific objectives of Maclay as well [19, 49] (Figs. 8 and 9).

Fig. 7
figure 7

The System of 12 human species as a table. The Papuans belong here to the genus Homo papuoides, species Lophocomus papua (NatĆ¼rliche Schƶpfungsgeschichte, 1889, p. 742)

Fig. 8
figure 8

A young boy, 8,5 old. From Maclayā€™s expedition to the Malay Archipelago, Island Tidor. 1873ā€“1875. RGO, fileĀ 6, List 3, ā„– 46

Fig. 9
figure 9

The portrait of the Papua male named Alen. The Maclay Coast. 1872. RGO, FileĀ 6, List 3, ā„– 33

In the first edition of the NatĆ¼rliche Schƶpfungsgeschichte published in 1868 (i.e. written at the time when Maclay was studying in Jena) Haeckel already approached Papuans as a research subject. In the survey of the ten human species (in later publications he advocated 12 human species) and subspecies, Haeckel classified Papuans as Hominis ulotriches (wooly-haired men). The same category embraced Homo primigenius (Urmensch, prehistoric or primordial man, the same as Pithecanthropus primigenius or Protanthropi), Homo hottentottus (Hottentots), and Homo afer (black Africans) [13].

There are two hypotheses underlying this classification. First, that hair is a crucial character indicating someoneā€™s place on the genealogical-tree. Haeckel was not the first and not the only to propose that hair is a distinctive feature to be used in human classifications. The idea was with all probability initially coined by Jean Bory de Saint Vincent (1778ā€“1846) in 1825 [29] and was employed by both Haeckel and F. MĆ¼ller. Haeckel developed his ā€œhair-basedā€ classification into a very detailed theory, where Papuans were labeled ā€œbushy-hairedā€ (BĆ¼schelhaarige) whereas, for example, Africans were categorized as ā€œfleecy-hairedā€ (Vlieshaarige), although all of them belonged to the same higher taxonomic category of ā€œwooly-hairedā€ humans [13, 15]. His descriptions of the ā€œbushy-hairā€ of Papuans shows how little he knew about real Papuans: ā€œTheir woolly hair grows in tufts, is spirally twisted in screws, and often more than a foot in length, so that it forms a strong woolly wig, which stands far out from the headā€ [15]. Haeckelā€™s attention to the hair structure partly explains the importance of this character for Maclay, and his excitement when he discovered that Papuansā€™ hair is not ā€œbushyā€. Maclay thus made a step towards current view that abandonded hair structure and skin color as racial discriminatory features [7].

Second, Papuans, for Haeckel, belonged to the most primitive group of human species. The most primitive means here that they were supposed to be phylogenetically closer to the pre-human hominids. Geographically, Haeckel placed Papuans in the region of New Guinea, New Britain (an island in the Bismarck Archipelago), New Caledonia, New Hebrides, and the Solomon Islands. The Papuans (a species Homo papua or Lophocomus papua) were for him ā€œmost closely related to the original primary form of wooly-haired menā€ of all still living human species [15]. Once again, even in the 1880s, after Maclayā€™s reports were already published in the most respectable scholarly journal Nature, Haeckel continued to insist that Papuans belong to a special human species: ā€œThe peculiar form of their hair and speech, so essentially distinguishes the Papuans from their straight-haired neighbors, from the Malays as well as from the Australians, that they must be regarded as an entirely distinct speciesā€ [15]. As to the state of their development Haeckel made controversial statements. In 1868 he claimed that some of them are ā€œopen to cultureā€ to a relatively high grade, whereas some of them remain on the ā€œlowest levelā€ of development among other humans [13]. At the same time, Haeckel clearly stated that his classifications presuppose the distinction of humans into higher and lower categories and that this classification is of biological nature. He insisted that the Aboriginal Australians and ā€œsome tribes of the Polynesiansā€ (Papuans) are at the lowest stage of human mental development as well as ā€œthe Bushmen, Hottentots, and some of the Negro tribesā€ [13, 15].

Haeckel argued that the language of Papuans, their arithmetical abilities and culture are at the lowest level as they are incapable of the simplest abstractions, although these claims were completely disproved by Maclay in the 1870s and 1880s. The lifestyle of Papuans, Haeckel asserted, is closer to that of apes than to that of civilized men. Most importantly, Haeckel concluded that this human species cannot be civilized in principle, because the Papuansā€™ brain remained evolutionarily underdeveloped: ā€œAll attempts to introduce civilization among these, and many of the other tribes of the lowest human species, have hitherto been of no avail; it is impossible to implant human culture where the requisite soil, namely, the perfecting of the brain, is wantingā€ [15]. Human species, according to Haeckel, evolved under the adaptive pressure and, among others, due to Darwinian natural selection: ā€œThe theory of selection teaches that in human life, as in animal and plant life everywhere, and at all times, only a small and chosen minority can exist and flourish, while the enormous majority starve and perish miserably and more or less prematurelyā€ [14]. However, in his view, human evolution was tending largely, but not exclusively, in a ā€˜progressiveā€™ direction. Thus, for example, for Haeckel the ā€œlow stage of mental developmentā€ of Aboriginal Australians must have arisen from degeneration, ā€œthat is by adaptation to the very unfavorable conditions of existence in Australiaā€ [15]. Haeckelā€™s view that there are higher and lower developed human species co-existing on Earth was a result of combining the struggle for existence within natural selection and his speculative concepts concerning phylogenies. Guided by the idea of the struggle for existence Haeckel arrived at the conclusion that Papuans, as well as other ā€œunderdevelopedā€ human species, would sooner or later disappear from the Earthā€™s surface, being ousted by the more advanced human beings [13].

Haeckel speculated about the race issues and the role of Papuans in the racial hierarchy until his very last days. In a small book published shortly before his death Ewigkeit: Weltkriegsgedanken Ć¼ber Leben und Tod, Religion und Entwicklungslehre (1915) [Eternity: World War Time Thoughts about Life and Death, Religion and Evolutionary Theory] written at the beginning of the First World War, Haeckel in a polemic style repeated his thesis that ā€œblack-brownā€ Australians and Papuans represent lower human races [niedere Menschenrassen] [17]. He stated again, as in the first edition of the NatĆ¼rliche Schƶpfungsgeschichte in 1868, that the difference between ā€œhighly developed European nations and the lowest savagesā€ is more significant than that between ā€œthe savagesā€ and anthropoid apes. Thus, despite the growing evidence of the contrary, Haeckel never gave up the idea of subdividing humans in lower and higher races in terms of their place on the genealogical-tree. At the same time, Haeckel was no ā€œdesk theoreticianā€. During his ca. fiftyā€‰years in Jena, he travelled a lot, 1859/60 to Italy, 1866 to the Canary Islands, 1866 to Norway, 1870 to the Orient, 1875 to Corsica, 1876 to Scotland, 1878 to Brittany, 1887 again to the Orient, 1890 to Algiers, and 1897 to Russia. In addition to these ā€œshort tripsā€, Haeckel visited tropical regions (in 1881 Ceylon; nine years later, Java and Sumatra), where he not only explored nature, but was also an active artist. But even after his long-term expeditions to tropical islands, where he directly contacted native populations, Haeckel did not change his mind and continued to think in terms of lower and higher races [16].

Meanwhile, as Haeckel continued to speculate about higher and lower humans, his Russian pupil Miklucho-Maclay was occupied with the thorough field studies that challenged the very foundations of Haeckelā€™s human phylogenetic trees. The major point of controversy were the Papuans.

To sum up, Haeckel developed a hypothesis claiming that the current Earth is populated by several human species, some of which are phylogenetically closer to the common human ancestor Pithecanthropus alalus, whereas other species are at a much more advanced stage of evolutionary development (Fig. 10). Cultural evolution and biological advancements were going hand in hand, enhancing each other during human evolution. This picture, Haeckel hoped, would contribute to prove the very idea of human origins from an ape-like ancestors. Papuans were for Haeckel a kind of an intermediate link between Protanthropi man and modern Europeans.

Fig. 10
figure 10

Gabriel von Max: Pithecanthropus alalus (1894), Oil painting. Ernst-Haeckel-Haus in Jena (EHH-Archive, Jena)

As one of the lowest human species, Papuans played a special role in the story as their morphological characteristics and ā€“ in Haeckelā€™s mind - underdeveloped brain should have been living proof of evolutionary progress of more advanced human species. This was exactly the point where Maclay intervened into the Haeckelian theory by derailing his idea that Papuans demonstrate specific morphological and linguistic features that would ā€œproveā€ their lower evolutionary stage in comparison to European nations. By attacking Haeckelā€™s grasp of Papuans, Maclay jeopardized the whole human phylogenetic tree proposed by Haeckel.

As we will see below, Maclay adapted from Haeckel and other contemporary Darwinians the central methodological idea that races are natural phenomena to be approached empirically. It was evident for him that the science of races can be built into a more general picture of growing (Darwinian) anthropology and allied sciences. Yet Maclay was not ready to accept the idea of humanity consisting of various hierarchically structured species. His intention was not to design speculative anthropological theories as Kant and Blumenbach had done, but to apply the very empirical method, which he learned in the Jena period primarily under the guidance of Haeckel [19]. At the core of this method was not only the general idea of evolution, the method of detecting geographic variations by appealing to anatomical and physiological characteristics, but also the Haeckelian way of exact observations of organisms in their natural environments. The connections and interactions between organisms, their place in the environment, were so important for Haeckel, that he coined the term ā€œecologyā€ to describe it [67, 70].

Nikolai Miklucho-Maclay: a biographical note

As Miklucho-Maclay is little known outside of Russia, and there are just a few biographical sources available in English, we summarize here relevant biographical details (Fig. 11).

Fig. 11
figure 11

Haeckel and Maclay before their trip to Canary Island (Lanzarote) 1866 (RGO St. Petersburg)

Nikolai Nikolajevich Miklucho was born on 17 July 1846 (Gregorian Calendar) in the Gouvernement Nowgorod of the Russian Empire. Nevertheless, he always emphasized his origin from Ukrainian Cossacks, which may be explained by his early interest in ethnic issues. His father was a railway engineer, who received a nobility title for his services; this allowed Nikolai to call himself ā€œvon Mikluchoā€ when in Germany. After his fatherā€™s death in 1857, the family grew impoverished; from that period on his financial problems were his permanent companions [63]. Already as a high school student, Maclay was fascinated by Russian liberal thinkers such as Alexander Herzen (1812ā€“1870), Nikolai Dobrolyubov (1836ā€“1861), Nikolai Tschernyschewsky (1828ā€“1889) and others who stood in opposition to the Tsarist regime, and who spread progressive and humanistic ideas. Russian liberalism at that time was tightly coupled with the admiration of natural science. Ivan Turgenevā€™s famous novel ā€œFathers and Sonsā€ (1862) captured this link between natural science and political views by addressing the problem of generational change in Russia. Turgenev and Maclay met several times in 1869 [63]. Alexander Herzen published in 1845/1846 in a popular literary journal Otechestvennye Zapiski (Domestic Notes) a philosophical essay ā€œLetters on the Study of Natureā€, where he, among others, emphasized the importance of empirical knowledge, and even speculated about the methods of morphology [30]. A radical social thinker and literary critic Dmitry Pisarev (1840ā€“1868), who was very influential among liberal students, published in 1864 in the journal Russkoje Slovo [Russian Word] the voluminous paper ā€œProgress in the Realm of Animals and Plantsā€, in which he made Darwinā€™s Origin accessible to a broad audience, explaining it chapter by chapter [36].

In 1863 Maclay dropped out of his high school (Gymnasium). There is a hypothesis that his liberal anti-Tsarist views played a significant role in this. The same year he enrolled in the Physical-Mathematical Department of the St. Petersburg University as a so-called ā€œguest studentā€, which meant that he was allowed to attend lectures without being formally admitted as a student. However, already in 1864, he was expelled from the university for violating the university rules by actively participating in studentsā€™ political actions. Because of a low probability to be allowed by authorities to enroll in another Russian university, Maclay decided to move to Germany, where no university entrance certificate was needed and no political repressions of Russian students existed. It is his German period, the student Miklucho became Miklucho-Maclay, although no ultimate explanation of this decision exists.

After spending a while at the Universities of Heidelberg and Leipzig, Maclay in October 1865 moved to Jena and a month later enrolled in the Medical Department of Jena University [6]. Between 1866 and 1868 Maclay studied zoology and anatomy with Haeckel and Haeckelā€™s senior colleague Carl Gegenbaur (1826ā€“1903) and became Haeckelā€™s assistant [21, 39, 40, 65]. During this time Maclay very attentively listened to Haeckelā€™s and Gegenbaurā€™s lectures. His detailed and well-illustrated lecture notes are kept in the archive of the Russian Geographical Society in St. Petersburg [26, 27]. This was exactly the time when Haeckel gradually became a center of gravity of continental Darwinism due to public lectures and writings, but especially due to the publication in 1866 of his double-volume foundational opus, the General Morphology, wherein Haeckelā€™s version of Darwinism and his research method were made fully explicit and presented in detail [12]. From November 1866 to April 1867 Maclay accompanied Haeckel on his research expedition to the Canary Islands via Switzerland, France, Spain, Portugal, and Tenerife. The ultimate objective of the expedition was to study sponges and brains of cartilaginous fishes on the island Lanzarote [44]. Remarkably this expedition took place after Haeckel had visited Charles Darwin at Down House on October 21st, 1866, so that Maclay was with all probability informed about this historical event. For him, the Canary studies resulted in a publication in German on the comparative neurology of vertebrates, where Maclay applied the descriptive techniques and research method acquired in Jena [43] (Fig. 12).

Fig. 12
figure 12

Šœaclay in a fur coat. Winter 1886 in St. Petersburg. RGO, File 6, List 3, ā„– 20

One of the best-known photographs of Haeckel is his joint portrait with Maclay; it was taken in Jena at the time of their Canary trip. This joint expedition is of special importance because it brought Haeckel and Miklucho in a very close contact, making the latter into Haeckelā€™s close associate for a while. In 1869 Maclay returned to Russia, and in 1870 he began preparing his first expedition to Polynesia [44]. Beginning in 1871, Maclay broke all communication with Haeckel. Even his monograph of 1870 was devoted to Carl Gegenbaur, and not Haeckel (as one would expect). One of the possible reasons for their alienation from each other was their growing disagreement over the nature of the human race [62]. The very last letter to Haeckel signed with the name Miklucho-Maclay was written by his Australian widow Margaret after his death in 1893. In this letter, written in English, she assured Haeckel that Nikolai Maclay held ā€œdeepest feelings of esteem and regardā€ toward Haeckel and called him Haeckelā€™s ā€œold friend in scienceā€. The major objective of Margaretā€™s writing was to win Haeckelā€™s support for the publication of Maclayā€™s scientific legacy. Despite its pragmatic character, this letter is a testimony of the deep influence of Haeckel on Maclay.

Back in St. Petersburg Maclay began with the preparation of his expedition to New Guinea and on September 27th, 1869, he submitted his initial plan to the Imperial Russian Geographical Society (RGO). In the same year, he received a research grant from the RGO and permission from the Tsar Alexander the II to join the corvette ā€œVitjazā€ (Knight) to reach New Guinea [44]. Yet before his departure, Maclay visited Jena one more time (1869ā€“1870) to finalize the publication of his first monograph. He also spent some time in Berlin, Leiden, Rotterdam, Brussels, and London in order to strengthen scientific cooperation with leading scholars. In October 1870 he presented his detailed research program to the RGO and at the end of the same month left for New Guinea. Altogether Miklucho spent about 17ā€‰years in the tropic regions, including six expeditions to New Guinea (1871ā€“72, 1874, 1876ā€“77, 1880, 1881, 1883) [52].

The major funding came from the Imperial Russian Geographical Society, but some financial support was offered also by the Anthropological Society of Berlin (Berliner Anthropologische Gesellschaft) founded by the famous German anatomist and anthropologist Rudolf Virchow (1821ā€“1902) with whom Maclay was in contact, and who helped Maclay with publications. Maclay had an opportunity to conduct long term stationary research in New Guinea and other regions of Polynesia and Melanesia (Fig. 13). Only in 1871ā€“1872, Maclay stayed on the north-east coast of New Guinea for an uninterrupted 15ā€‰months [11]. One of the major objectives of this expedition was an anthropological and ethnological study of Papuans [44] (Fig. 14). Maclay traveled a lot throughout the world, visiting many countries that, for European travelers, were ā€˜exoticā€™: Singapore, Jakarta, ā€œDutch Indiaā€ or Siam. Australia became his second homeland as in February 1884 he married Margaret Emma Robertson-Clark Robertson (1855ā€“1936), the daughter of the President of New South Wales, John Robertson (1816ā€“1891). Maclay was politically very active throughout his whole life, trying to apply his knowledge of Papuans and other native folks to protect them from slavery and exploitation by industrial nations. He enjoyed a very high level of confidence from indigenous populations; the Papuans called him Kaaram-tamo, ā€œThe Moonmanā€ partly on account of the supernatural capacities they ascribed to him [46]. To this day the natives of New Guineaā€™s Maclay Coast cherish the memories of him, and the name Nikolai is frequently given there.

Fig. 13
figure 13

Maclayā€˜s first hut in Garagasi, New Guinea 1871ā€“1872. RGO, FileĀ 6, List 3, ā„– 33

Fig. 14
figure 14

Maclay with his assistant Akhmat. 1874ā€“1875. RGO, FileĀ 6, List 3, ā„– 20

Maclay died on 14 April 1888 in St. Petersburg without being able to systematize his scientific legacy, which was partly lost and destroyed. His works were organized and prepared for publications by his biographers and researchers, in recent times by such authors as Boris Putilov, Nikolai Butinov, and Dmitry Tumarkin.

Miklucho-Maclayā€™s race studies

The major problem with describing Maclayā€™s anthropological and ethnological views is his predominantly descriptive way of presenting scientific results. He avoided sweeping generalizations and, in that sense, was the exact opposite of Haeckel who tended to engage in broad theoretical speculation. Yet, Maclayā€™s anthropological and ethnographic observations were designed in such a way that they approached burning issues of his time. They are of a high value even now, because he arrived in New Guinea when the culture of Papuans was of a ā€œpurelyā€ Neolithic character, without any external influences. His program of studies was very interdisciplinary but included anthropological questions as its very important elements. To achieve his goals Maclay developed a method of ā€œstationary fieldworkā€. Maclay learned Papuan language and beliefs which allowed him to live among the indigenous popluations, conducting observations and anthropological measurements from both etic and emic perspectives, thus acquiring information inaccessible for customary researches. For example, he even succeeded in measuring an erected penis of a Papuan. As Nature reported in 1882: ā€œWhen in search of a place at which to study the customs and life of the primitive people at the lowest stage of culture, M. Maclay chose the north-western coast of New Guinea, close by Astrolabe Bay, which was never visited before by Europeans. [ ā€¦] He built his hut between two Papuans villages, on a promontory that was occupied by nobodyā€ [46].

At the same time, being intimately involved with the natives, Maclay was far from being just a sentimental travelling diarist. In 1876 he emphasized that during his first expedition to New Guinea in 1871ā€“72 he ā€œstudied Papuans rather from anthropological (anatomical) viewpointā€ [44]. His notes reveal an application of a scientific method, and that method was to a great extent acquired by him while studying zoology and medicine in Jena: ā€œOccupation with comparative anatomy (especially with sponges) convinced him of the importance of geographical variation of animals [ ā€¦]. In that sense, Miklucho followed the most advanced tendencies of contemporary science. Like his mentor E. Haeckel, he considered racial variation from the same viewpoint as a variation of other biological species. It is not surprising that in the commented text we find notions like adaptation and inheritance. Racial modifications are seen by him [Maclay] as resulting from instant influences of social and natural environmentsā€ (A.N. Anfertjev in: 44).

To appreciate Maclayā€™s debt to Haeckel one must remember that for Haeckel certain anatomical features indicated a phylogenetic history of human species [40]. Along with the shape of the hair, Haeckel, as well as Rudolf Virchow and many other physical anthropologists at that time, paid a lot of attention to cranial geometry [19]. For example, Haeckel connected the head form of African apes and African human races and contrasted them to Asian apes and Asian human populations: ā€œFor it is a very remarkable fact, that the African man-like apes (gorilla and chimpanzee) are characterized by a distinctly long-headed, or dolichocephalous, form of skull, like the human species peculiar to Africa (Hottentots, Caffres, Negroes, Nubians). On the other hand, the Asiatic man-like apes (especially the small and large orang), by their distinct, short-headed, or brachycephalous, a form of skull agree -with human species especially characteristic of Asia (Mongols and Malays). Hence, one might be tempted to derive the latter (the Asiatic man-like and primeval men) from a common form of brachycephalous ape and the former (the African man-like apes and primeval men) from a common dolichocephalous form of apeā€ [15]. The hypothetical primeval continent Lemuria mediated these two extremes: ā€œIn any case, tropical Africa and southern Asia (and between them Lemuria, which formerly connected them) are those portions of the earth which deserve the first consideration in the discussion as to the primaeval home of the human raceā€ [15].

Maclay disproved the hypothesis of a special hair-structure of Papuans (ā€œbushy-hairinessā€) as a reliable racial characteristic. John Galton reported in 1874 in Nature on Maclayā€™s findings: ā€œAfter a series of very careful observations, made as well upon shaven as upon well-covered scalps, Dr. Maclay concludes that the hair is not naturally disposed, as has been represented, in tufts or clumps, but grows just as it would upon the head of a Europeanā€ [8]. In a manuscript summarizing his expeditions of 1876 Maclay repeated this thesis and made explicit references to Theodor Waitzā€™ the Anthropologie der Naturvƶlker [The anthropology of peoples that live close to nature], Fritz MĆ¼llerā€™s Allgemeine Ethnographie and Haeckelā€™s NatĆ¼rliche Schƶpfungsgeschichte as the sources of the ā€œbushy-hairinessā€ hypothesis. ā€œNo geographic varietyā€ of Papuans, Maclay argued, demonstrated that kind of hair [45].

Already in 1871ā€“72, Maclay discovered that Haeckelā€™s hypothesis concerning Papuansā€™ skin was false as well: ā€œa special design of Papuansā€™ skin can in no way be specified as a character differing them from other humansā€ [41]. Papuans skin color and design were not ā€œof special characterā€ as predicted by Haeckel and other anthropologists and could not be used for distinguishing Melanesians from other human ā€œspeciesā€: ā€œBlack skin is not a feature characterizing the whole tribe [Stamm] of Papuansā€, Maclay claimed.

Haeckelā€™s and Virchowā€™s idea that a certain race can be ascribed a tendency to dolichocephaly or brachycephaly was ultimately disproved by Maclay as well. After conducting hundreds of measurements and craniological studies on male and female Papuans, he concluded that ā€œthe long-headedness (dolichocephaly) does not hold as a racial characteristic of Papuans,ā€ because among hundreds of heads with dolichocephaly he found dozens of brachiocephalic individuals [45]. In sum, Maclayā€™s ā€œmere observationsā€ quickly disproved a series of anthropological concepts formulated by leading scientists, Haeckel among them.

Maclay was fully aware of the significance of his descriptions already in the early 1870s. Commenting on his diaries of 1871ā€“1872 Tumarkin remarked: ā€œThis diary clearly demonstrated Miklucho-Maclayā€™s worldview. The claim that Papuans were ā€˜bushy-hairedā€™ was used by some anthropologists and biologists, including Ernst Haeckel, to substantiate the doctrine of racial inequality, placing Papuans as an intermediate link between anthropomorphic apes and Europeans. Being fully aware of the public danger of such theories Miklucho-Maclay has got a ā€˜good moodā€™ as he discovered that the arguments based on the bushy-hairiness of Papuans are erroneousā€ (Comment of D. Tumarkin in: 44).

Maclayā€™s observations were a result of thoroughly planned scientific expeditions and the research questions he posed were formulated in direct communication with leading scientists of his time. In his ā€œProgram of the Proposed Studies on the Islands and Coastline of the Pacific Oceanā€ announced to the Russian Geographical Society on the 7th of October 1870, Maclay numbered several scientists who directly influenced his research program. It included physical geography, meteorology, ethnography, anthropology, and political economy. The general objective of the expedition, which was initially planned to last seven to eight years, was to describe how organisms vary depending on varying environmental conditions [45]. This was quite a typical question for the Darwinian evolutionists of those days. Concerning specifically ethnography and anthropology, Maclay mentioned, among others, the detailed recommendations provided to him by a German ethnographer Adolf Bastian (1926ā€“1905), a letter from a German geographer and anthropologist Georg Gerland (1833ā€“1919), and a letter from a German-Russian universal naturalist Karl Ernst von Baer (1792ā€“1876). Maclay was personally well acquainted with Baer and cited Baerā€™s publication On Papuans and Alfuros [1] directly related to the subject matter. Darwin was certainly one of Maclayā€™s inspirations as well, but there were no direct contacts between them, though he used Darwinā€™s published instructions for an Austrian expedition to South America and Eastern Asia. Rudolf Virchow also played a special role for Maclay, as he helped the young researcher to publish his studies. In addition, important for Maclay were verbal communications with the famous ā€œDarwinā€™s bulldogā€ Thomas Henry Huxley (1825ā€“1895), the comparative anatomist Carl Gegenbaur, anatomist and ethnographer Robert Hartmann (1832ā€“1893), and ā€œDarwinā€™s shadow manā€ Alfred Russel Wallace (1823ā€“1913), who mentioned Papuans and Alfuros in the 2nd volume of his famous The Malay Archipelago [66]. The pre-Darwinian evolutionist James C. Prichard (1786ā€“1848) is regarded as one of Maclayā€™s important influences as well [3]. Prichard championed the idea of the unity of human species (monogenism) understanding ethnology as a ā€œnatural history of manā€ [50, 51] and was one of the earliest scientific advocates of aboriginesā€™ rights.

To return to Haeckel, he proposed Maclay pay attention to the following issues:

1. Histological structure of the head epidermis and other body parts;

2. The length of the big toe and of the male organ; femaleā€™s glute shape and female genitals and breast; teeth of various races.

3. Swimming of various inhabitants of the Pacific islands (how do they swim) [45].

As Maclayā€™s diaries document, he followed Haeckelā€™s suggestions quite exactly and investigated even the most intimate details of Papuansā€™ anatomy and physiology.

The idea that Maclayā€™s choice of New Guinea as his major research place ā€œwas made under the influence of his mentor Ernst Haeckelā€, was first expressed by Butinov [4] and then reintroduced by Belkov [3]. The hypothesis proved that Haeckelā€™s concept of a hypothetical continent Lemuria, which once existed in the Indian Ocean, and which served as the cradle of humanity, was an important factor in Maclayā€™s decision to study the Papuans. Although Wallace did not exclude the existence of Lemuria [56], it was Haeckel who passionately pushed this idea forward, making it into the cornerstone of his evolutionary anthropology [33, 34] (Fig. 15).

Fig. 15
figure 15

The Map of Lemuria. Hypothetical sketch of the monphyletic origin and the diffusion of the twelve human species over the Earth (The History of Creation, 1887, Plate XV)

Haeckel, indeed, proceeded from the assumption that immediate predecessors of modern humans evolved from anthropoid apes on the ā€œprimordial continentā€ Lemuria, extending between the Sunda-Islands and the African East-coast [13]. Haeckel called the human species evolved on Lemuria Homo primigenius [69]. The Papuans were, according to Haeckel, the living remnants closest to the original form of the wooly-haired man [13]. Geographically, New Guinea is close to the Eastern Shore of the hypothetical continent and it was tempting for Haeckel to formulate a hypothesis that the human species geographically closest to Lemuria was the most primitive one [69].

It is important to appreciate the pivotal role of Maclayā€™s choice in terms of Haeckelā€™s speculative system. Disproving the hypothesis that Papuans were the most primitive human species with distinctive morphological traits would overturn the whole Haeckelian human phylogeny. This proved strong enough motivation for a young ambitious naturalist to go to New Guinea. Maclay was explicit about his intentions to investigate New Guinea as the hypothetical homeland of Haeckelā€™s ā€œprimordial manā€ [61]. Belkov has no doubts that Maclayā€™s plan matured in Jena under Haeckelā€™s direct influence: ā€œIf one considers that information taken from Haeckelā€™s lectures overlapped in Miklucho-Maclayā€™s mind with the Gerlandā€™s ethnic map of the region, in which all areas listed by Haeckel are brown-painted as the Papuans settlements, there would be no doubts how and where he came to the idea of expedition to New Guinea to study the Papuansā€ [3]. In a short, uncompleted note presumably written in 1871ā€“72 [4] with the title ā€œWhy I Chose New Guinea as a Field of my Studiesā€ Maclay, indeed, mentioned ā€œproblematic continent, so called Lemuriiā€ in the context of discussing the importance of New Guinea for exploring the nature of Polynesia [45]. Maclay looked for Haeckelā€™s primary human species not only in New Guinea, but also on the Philippines (1873), Malaki (1874ā€“1875), and various Melanesian islands [4]. He found nothing close to Haeckelā€™s descriptions.

Maclay conducted thousands of exact and very detailed observations and measurements of anatomical, physiological, linguistic and cultural kind. His conclusions were based on this titanic, single-person fieldwork, and not on theoretical speculations as in Haeckelā€™s case. For example, in February 1877 Rudolf Virchow received a letter from Maclay, which was accompanied by a manuscript describing the results of his nine-months long studies in West-Micronesia and North-Melanesia in 1876. In the letter, Maclay asked Virchow for support for his anatomical race-studies. Despite the transdisciplinary nature of Maclayā€™s methodology, anatomy belonged to the standard instruments of his research routine. He always stressed: ā€œthe imperative necessity of human races anatomy as a foundation of anthropologyā€ [42]. Under ā€œanatomyā€ Maclay understood techniques such as head- and skull measurements, descriptions of height, skin-color, rudiments of Palpebra tertia, the secondary sexual characteristics, big toe, hair-structure and in-depth investigations such as the brain anatomy.

And he conducted such measurements in statistically significant numbers. During his 1876ā€“77 expedition to the Maclay-Coast (the North-east coast of Papua New Guinea) he conducted head-measurements on 148 living individuals of both sexes and described 23 Papuans crania [42]. He always emphasized that physical anthropology (the race anthropology) would remain merely an ā€œunedifying doctrineā€ [unerquickliches Studium] without detailed field studies and profound anatomical investigations ā€œon the section tableā€ [42]. All measurements and observations were combined by Maclay with linguistic and ethnographic studies, leading to a general textual and visual description of a population.

The general result of all these efforts were exact anthropological and ethnographic portraits of ā€œMelanesiansā€, ā€œPolynesiansā€ and ā€œAustraliansā€.

On a higher theoretical level, Maclay believed that racial differences are due to adaptation to local environments. For him, acclimatization of ā€œthe white raceā€ in the Pacific region demonstrated that ā€œwhitesā€ would be able to survive in the tropics only by crossing with indigenous people. He was convinced that in the future, the Pacific region would be populated by a ā€œmix-raceā€, and that this would not necessarily be with a significant European component [45].

Maclayā€™s conclusions concerning the intellectual abilities of Melanesians were a result of thorough observations as well. In a lecture given in 1886 in St. Petersburg, and published in the same year, he explicitly spoke against the prejudices of the infamous French theorist of racial inequality Joseph Arthur de Gobineau (1816ā€“1882) and specifically against his claim ā€œLā€™homme est lā€™animal mĆ©chant par excellenceā€ (Man is the wicked animal par excellence) [10, 45]. Maclay recalled, that when he began understanding the language of the Papuans and their relationships, he was surprised by their ā€œgentleman-likeā€ attitudes, democratic social structure and friendly family relations [45]. Maclay appealed to his ethnological collection at The Russian (St. Petersburg) Academy of Sciences, the missionerā€™s schools in various islands of Melanesia, the ability of Melanesians to learn mathematics (by contrast to Haeckel who questioned their ā€œarithmetic abilitiesā€) and other evidence. All were arguments against racial prejudices. Proceeding from his observations Maclay completely negated the idea of intellectual racial inequality [3]. This concept prompted him to fight for the rights of indigenous populations of Melanesia and generally for the rights of ā€œdark-skinnedā€ races. In the 1880s Maclay tried to convert his scientific reputation into political action. Unfortunately, his attempts failed and the northeastern part of the island became a German colony already in 1884, followed by the other territories.

Maclay avoided great theoretical generalizations and his exact position towards Darwinian evolutionary mechanisms remains enigmatic [68]. With all probability, he accepted some of Haeckelā€™s and Darwinā€™s Lamarckism, as he believed in the ability of ā€œtribesā€ to quickly adapt to their local environments. He certainly did not believe in the Haeckelian concept of evolutionary progress as applied to extant human races. Maclayā€™s ā€œtribesā€ and ā€œracesā€ differentiate under external influences but this does not make them ā€œhigherā€ or ā€œlowerā€ on the evolutionary tree, as in Haeckelā€™s case.

Conclusions

Haeckel believed in evolutionary progress and applied this belief to the evolution of human species as well (Fig. 16). Humans, according to him, evolved from a common ancestor Pithecanthropus and passed the stage of the ā€œprimordial manā€ Homo primigenius (Protanthropi), which evolved on the ā€œprimordial continentā€ Lemuria. The Lemuria-man gave rise to the currently existing human species of which the Papuans belong to the most primitive and least advanced from Protanthropi. In accordance with the concept of natural selection and social Darwinian conceptual constructions, the Papuans were for Haeckel doomed to die out, being replaced by more progressive human races such as the Mediterranean. Haeckel applied to the evolution of human species the same principles as he applied to the evolution of sponges or apes. He proceeded from the assumption that every species that exists or ever existed on Earth evolved from a lower form by means of natural selection. It was for him a universal law. Looking for proof of this law in all areas of biology and anthropology Haeckel described species variation and reconstructed their hypothetical phylogenies [22, 40]. Human phylogeny, in his view, would necessarily reinforce this idea as currently, existing human species seem to be very distinct morphologically and culturally. In this way, Haeckel came to the sound idea that various human species could co-exist on Earth in the past and to the erroneous concept that they still populate the Earth. As we know now the very idea that Earth could be populated by various human species is not unscientific as, indeed, for example, Homo sapiens, Homo Neanderthalensis and Denisova hominins co-existed for a quite significant period [31, 53, 60].

Fig. 16
figure 16

A visualization of Haeckelā€™s ā€œThe History of Creationā€ by G. Avery illustrating biological evolution from monera (1) to the Papuans (24), which arose from the primaeval man and represent ā€œthe oldest of all still living human speciesā€ (Scientific American, March 11, 1876, p. 167)

As such the Papuans were for Haeckel a remnant of an ancient human form that survived in the New Guinea due to its isolation from the rest of the world, and its proximity to Lemuria (Fig. 15).

Maclay was Haeckelā€™s student and (for a certain period) his junior friend. He internalized the Haeckelian-Darwinian method of looking for geographic variation and applied it successfully in his zoological works of the Jena period. He learned from Haeckel that the best way to study living organisms is to observe them in their natural habitats in connection with their immediate living and inert environments. He traveled to New Guinea and other tropic regions to apply the same method to study humans and to empirically study the races of Polynesia, Melanesia, and other related regions, where Haeckelā€™s hypothetical primitive species could be found. In the course of his long-term stationary field studies, Maclay discovered that the Haeckelian view (and that of other theoreticians such as Fritz MĆ¼ller) of the Papuans as a lower human species was erroneous on empirical grounds. But he proved Haeckel wrong by essentially using the method he learned in Jena with Haeckel. Although Maclay experienced many influences from other first rank researchers of his time, such as Karl Ernst von Baer, Alfred Russel Wallace, Rudolf Virchow, Carl Gegenbaur, etc., it was Haeckel, who initially taught him the Darwinian method and the subtleties of empirical research. This is an argument in favor of the idea that, although definitely racist from the contemporary viewpoint, and even from the viewpoint of many of anthropologists of those times, the Haeckelian racial scheme appeared as a result of lacking in empirical anthropological data rather than as a necessary outcome of the method he relied on. As Haeckelā€™s student, Maclay shows us what happens when that method was applied to a richer field of anthropological observations.

Unfortunately, Maclayā€™s observations had little influence in the Western world, and could not prevent growing racial thinking in Europe and especially in Germany in the first half of the twentieth century. In their infamous book Menschliche Erblehre und Rassenhygiene (Eugenik) [Human Heredity and the Racial Hygiene (Eugenics)] first printed in 1921 and republished altogether five times, Erwin Baur, Eugen Fischer, and Fritz Lenz appealed again to the ā€œhair-argumentā€ to prove the lower value of ā€œPapua-Melanesiansā€; their ulotrichan hair [Kraushaarigkeit] served the authors as an indicator of Papuan retardation [2].

By contrast, Maclayā€™s exact observations contributed to the growing scientific anti-racism, which became a commonly accepted position nowadays [7].

Availability of data and materials

Yes

Notes

  1. Leo Tolstoy to P.I. Biryukov, on May 24th 1908.

  2. Leo Tolstoy to Miklucho-Maclay on September 25th, 1886.

References

  1. von Baer KE. Ɯber Papuas und Alfuren: ein Commentar zu den beiden ersten Abschnitten der Abhandlung. St. Petersbourg: Buchdruckerei der Kaiserlichen Akademie der Wissenschaften; 1859.

    Google ScholarĀ 

  2. Baur E, Fischer E, Lenz F. Menschliche Erblehre und Rassenhygiene (Eugenik). Band I. MĆ¼nchen: J. F. Lehmanns Verlag; 1936.

    Google ScholarĀ 

  3. Belkov PL. Physical Anthropology in the Research of N.N. Miklucho-Maclay. In: Belkov PL, editor. Old and New in the Studies of the Ethnographic Heritage of N.N. Miklucho-Maclay. St. Petersburg: Russian Academy of Sciences, Peter the Great Museum of Anthropology and Ethnography; 2014. p. 51ā€“78. [in Russian].

  4. Butinov NA. Miklucho-Maclay i Ernst Haeckel. Maklahevskije chtenija (1998-2000). In: Avstralia, Okeania, Jugo-Vostochnaja Asija: Narody, Kultura, Istorija. St-Petersburg: Kunstkamer; 2001.

    Google ScholarĀ 

  5. Darwin C. The Descent of Man. In: Reprint by Penguin books, 2004. 2nd ed. London: Penguin books; 1879.

    Google ScholarĀ 

  6. DiGregorio M. From Here to Eternity. Ernst Haeckel and Scientific Faith. Gƶttingen: Vandenhoeck & Ruprecht; 2005.

    Google ScholarĀ 

  7. Fischer MS, Hossfeld U, Krause J, Richter S. Jenaer ErklƤrung ā€“ Das Konzept der Rasse ist das Ergebnis von Rassismus und nicht dessen Voraussetzung. Biologie in unserer Zeit. 2019;49:399ā€“402.

    ArticleĀ  Google ScholarĀ 

  8. Galton JC. Dr. von Miklucho-Maclayā€™s Researches among the Papuans. Nature. 1874;26:328ā€“30.

    ArticleĀ  Google ScholarĀ 

  9. Gliboff S. Ascent, Descent, and Divergence: Darwin and Haeckel on the Human Family Tree. Konturen. 2014;6:103ā€“30.

    ArticleĀ  Google ScholarĀ 

  10. de Gobineau JA. Essay sur Lā€™InĆ©galitĆ© des Races Humaines. Tome Second. Paris: Librairie de Firmin-Didot; 1884.

    Google ScholarĀ 

  11. Govor E, Manickam SK. A Russian in Malaya: Nikolai Miklouho-Maclayā€™s Expedition to the Malay Peninsula and the Early Anthropology of Orang Asli. Indones Malay World Special Issue, 123: 222-245; 2014.

    ArticleĀ  Google ScholarĀ 

  12. Haeckel E. Generelle Morphologie der Organismen. Allgemeine GrundzĆ¼ge der organischen Formen-Wissenschaft, mechanisch begrĆ¼ndet durch die von Charles Darwin reformierte Descendenztheorie. Band 1. Allgemeine Anatomie der Organismen, Band 2. Allgemeine Entwickelungsgeschichte der Organismen Berlin: Verlag Georg Reimer; 1866.

  13. Haeckel E. NatĆ¼rliche Schƶpfungsgeschichte. GemeinverstƤndliche VortrƤge Ć¼ber die Entwickelungslehre im Allgemeinen und diejenige von Darwin, Goethe und Lamarck im Besonderen, Ć¼ber die Anwendung derselben auf den Ursprung des Menschen und andere damit zusammenhƤngende Grundfragen der Naturwissenschaft. Berlin: Verlag von Georg Reimer; 1868; zweite Auflage, 1870; achte Auflage 1889.

  14. Haeckel E. Freedom in Science and Teaching. New York: D. Appleton and Company; 1879.

    Google ScholarĀ 

  15. Haeckel E. The History of Creation, vol. II. New York: D. Appleton and Company; 1887.

    Google ScholarĀ 

  16. Haeckel E. Aus Insulinde. Malayische Reisebriefe. Verlag von Emil StrauƟ: Bonn; 1901.

    BookĀ  Google ScholarĀ 

  17. Haeckel E. Ewigkeit - Weltkriegsgedanken Ć¼ber Leben und Tod, Religion und Entwicklungslehre. Berlin: Georg Reimer; 1915.

    Google ScholarĀ 

  18. Hossfeld U. Ernst Haeckel. Biographienreihe absolute, Freiburg i. Br: Orange press; 2010.

  19. Hossfeld U. Geschichte der biologischen Anthropologie in Deutschland. Von den AnfƤngen bis in die Nachkriegszeit. Franz Steiner Verlag: 2. Auflage, Stuttgart; 2016.

  20. Hossfeld U, Olsson L. The road from Haeckel. The Jena tradition in evolutionary morphology and the origin of ā€œEvo-Devoā€. Biol Philos. 2003;18:285ā€“307.

    ArticleĀ  Google ScholarĀ 

  21. Hossfeld U, Olsson L. The History of Comparative Anatomy in Jena - An Overview. Theor Biosci. 2003;122:109ā€“26.

    Google ScholarĀ 

  22. Hossfeld U, Levit GS. ā€˜Tree of lifeā€™ took root 150 years ago. Nature. 2016;540:38.

    ArticleĀ  PubMedĀ  CASĀ  Google ScholarĀ 

  23. Hossfeld U, Watts E, Levit GS. The first phylogenetic tree of plants was defined 150 years ago. Trends Plant Sci. 2017;22:99ā€“102.

    ArticleĀ  PubMedĀ  CASĀ  Google ScholarĀ 

  24. Hossfeld U, GS Levit & U Kutschera (eds.) Ernst Haeckel (1843ā€“1919): The German Darwin and his impact on modern biology. Special Issue, Theory in Biosciences 2019; 138: 1-202.

  25. Hossfeld U, Levit GS, Olsson L. Haeckel reloaded: 150 Jahre ā€œBiogenetisches Grundgesetzā€. Biol Unserer Zeit. 2016;46:190ā€“5.

    ArticleĀ  Google ScholarĀ 

  26. Hossfeld U, GS Levit, MS Fischer, A Blankenburg, T Thieme, G Puchert & M Matveeva: Vorlesungen Ć¼ber Zoologie von Ernst Haeckel. Die Vorlesungsmitschrift von Nikolai Nikolajewitsch Miklucho-Maclay aus dem Wintersemester 1865/66 (in press), 2020.

  27. Hossfeld U, R Frƶber, MS Fischer, GS Levit, T Thieme & M Matveeva: Vorlesungen Ć¼ber Menschliche Anatomie von Carl Gegenbaur. Die Vorlesungsmitschrift von Nikolai Nikolajewitsch Miklucho-Maclay aus dem Wintersemester 1865/66 (in press), 2020.

  28. Humboldt A v. Cosmos vol. 1. Baltimore and London: The Johns Hopkins University Press; 1997.

  29. JunkerjĆ¼rgen R. Haarfarben: eine Kulturgeschichte in Europa seit der Antike. Kƶln: Bƶhlau; 2009.

    Google ScholarĀ 

  30. Kolchinsky EI, Levit GS. The reception of Haeckel in pre-revolutionary Russia. Theor Biosci. 2019;138:73ā€“88.

    ArticleĀ  Google ScholarĀ 

  31. Krause J, et al. The complete mitochondrial DNA genome of an unknown hominin from southern Siberia. Nature. 2010;464:894ā€“7.

    ArticleĀ  PubMedĀ  CASĀ  Google ScholarĀ 

  32. Krausse E. Pithecanthropus erectus Dubois (1891) in Evolutionsbiologie und Kunst. Verhandlungen zur Geschichte und Theorie der Biologie. 2000;4:69ā€“87.

    Google ScholarĀ 

  33. Kutschera U, Hossfeld U, editors. Alfred Russel Wallace (1823- 1913): The man in the shadow of Charles Darwin. Theory Biosci. 2013;132:207ā€“97.

  34. Kutschera U, Hossfeld U. Alfred Russel Wallace (1823-1913): The forgotten co-founder of the Neo-Darwinian theory of biological evolution - Editorial. Theor Biosci. 2013;132:207ā€“14.

    ArticleĀ  Google ScholarĀ 

  35. Kutschera U, Levit GS, Hossfeld U. Ernst Haeckel (1834-1919): ā€œGerman Darwinā€ and his impact on modern biology. Theor Biosci. 2019;138(1):1ā€“7.

    ArticleĀ  Google ScholarĀ 

  36. Levit GS, Polatayko SV. At home among strangers: Alfred Russel Wallace in Russia. Theor Biosci. 2013;132:289ā€“97.

    ArticleĀ  CASĀ  Google ScholarĀ 

  37. Levit GS, Hossfeld U, Olsson L. The Darwinian Revolution in Germany: From Evolutionary Morphology to the Modern Synthesis. Endeavour. 2014;38:268ā€“79.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  38. Levit GS, Hossfeld U, Olsson L. Alexei Sewertzoff and Adolf Naef: Revising Haeckelā€™s biogenetic law. Hist Philos Life Sci. 2015;36:357ā€“70.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  39. Levit GS, Reinhold P, Hossfeld U. Goetheā€™s ā€œComparirte Anatomyā€ as a foundation for the growth of theoretical and applied biomedical sciences in Jena. Theor Biosci. 2015;134:9ā€“15.

    ArticleĀ  CASĀ  Google ScholarĀ 

  40. Levit GS, Hossfeld U. Ernst Haeckel in the history of biology. Curr Biol. 2019;29:R1276ā€“84.

    ArticleĀ  PubMedĀ  CASĀ  Google ScholarĀ 

  41. Mikluho-Maklay NN. Anthropologische Bemerkungen Ć¼ber die Papuas der Maklay-KĆ¼ste in Neu-Guinea. Batavia: Ernst & Co.; 1873.

    Google ScholarĀ 

  42. Miklucho-Maclay NN. Anthropologischen Notizen, gesammelt auf einer Reise in West-Mikronesien und Nord-Melanesien im Jahre 1876. AuƟerordentliche Sitzung am 9. MƤrz. Verhandlungen der Berliner Gesellschaft fĆ¼r Anthropologie, Ethnologie und Urgeschichte. Redigirt von R. Virchow. Jahrgang. 1878:99ā€“117.

  43. Miklucho-Maclay NN. BeitrƤge zur vergleichenden Neurologie der Wirbelthiere. Teil I: Das Gehirn der Selachier. Teil II: Das Mittelhirn der Ganoiden und Teleostier. Leipzig: Verlag von Wilhelm Engelmann; 1870.

    Google ScholarĀ 

  44. Mikloucho-Maclay NN. Complete works in 6 volumes. Ed. by Putilov BN and Tumarkin DD, Vol. I. Moscow: Nauka; 1990. [in Russian].

    Google ScholarĀ 

  45. Mikloucho-Maclay NN. Complete works in 6 volumes. Ed. by Putilov BN and Tumarkin DD. Vol. 3. Moscow: Nauka; 1993. [in Russian].

    Google ScholarĀ 

  46. NN. M. Miklukho-Maclay on New Guinea. Nature. 1882;27:137ā€“8.

    ArticleĀ  Google ScholarĀ 

  47. Olsson L, Levit GS, Hossfeld U. The ā€œBiogenetic Lawā€ in zoology: From Ernst Haeckelā€™s formulation to current approaches. Theor Biosci. 2017;136:19ā€“29.

    ArticleĀ  Google ScholarĀ 

  48. Porges K, Stewart IG, Hossfeld U, Levit GS. From Idea to Law: Theory, Concept and Terminological Formation in Ernst Haeckelā€™s Works. Russ J Dev Biol. 2019;50(6):290ā€“302.

    ArticleĀ  Google ScholarĀ 

  49. Preuss D, Hossfeld U, Breidbach O, editors. Anthropologie nach Haeckel. Stuttgart: Franz Steiner Verlag; 2006.

  50. Prichard JC. Researches into the physical history of man. 4th ed. London: Sherwood, Gilbert and Piper, Paternoster-Row; 1841-1851.

  51. Prichard JC. The Natural History of Man. London: BailliĆØre; 1843.

    Google ScholarĀ 

  52. Putilov BN, Tumarkin DD. Scientific Heritage of N.N. Miklucho-Maclay and the Principles of its Classification. In: Putilov BN, Tumarkin DD, et al., editors. N. Miklucho-Maclay, Complete works in 6 volumes. Moscow: Nauka; 1990. [in Russian].

    Google ScholarĀ 

  53. Reich D, et al. Genetic history of an archaic hominin group from Denisova Cave in Siberia. Nature. 2010;468:1053ā€“60.

    ArticleĀ  PubMedĀ  PubMed CentralĀ  CASĀ  Google ScholarĀ 

  54. Richards RJ. The Tragic Sense of Life: Ernst Haeckel and the Struggle over Evolutionary Thought. Chicago: Chicago University Press; 2009.

    Google ScholarĀ 

  55. Richards RJ. Myth 19. In: Numbers RL, editor. Galileo Goes to Jail and other Myths about Science and Religion. Boston: Harvard University Press; 2010.

    Google ScholarĀ 

  56. Richards RJ. Ernst Haeckel: A dream transformed. In: Harman O, Dietrich M, editors. Dreamers, Visionaries, and Revolutionaries in the Life Sciences. Chicago and London: The University of Chicago Press; 2018. p. 35ā€“50.

    Google ScholarĀ 

  57. Rieppel O. Phylogenetic Systematics. Haeckel to Hennig. Boca Raton: CRC Press; 2016.

    BookĀ  Google ScholarĀ 

  58. Rizhinashvili AL. Ernst Haeckelā€™s ā€œecologyā€ in Russia of the first half of the twentieth century. Theor Biosci. 2019;138:89ā€“103.

    ArticleĀ  Google ScholarĀ 

  59. Rupke NA, Lauer G. Introduction: A Brief History of Blumenbach Representation. In: Rupke NA, Lauer G, editors. Johann Friedrich Blumenbach: Race and Natural History, 1750ā€“1850. New York: Routledge; 2019.

    Google ScholarĀ 

  60. Sankararaman S, et al. The Combined Landscape of Denisovan and Neanderthal Ancestry in Present-Day Humans. Cell. 2016;26:1241ā€“7.

    CASĀ  Google ScholarĀ 

  61. Stagl J. Nikolai Nikolajewitsch Miklouho-Maclay oder das Dilemma des Ethnographen in einer vorkolonialen Situation. Z Ethnol. 1989;114:195ā€“204.

    Google ScholarĀ 

  62. Stewart I, Hossfeld U, Levit GS. Evolutionary ethics and Haeckelian monism: The case of Heinrich Schmidtā€™s Harmonie (1931). Theor Biosci. 2019;138:189ā€“202.

    ArticleĀ  Google ScholarĀ 

  63. Tumarkin D. Nikolai Miklucho-Maclay: The Two Lives of the ā€œWhite Papuaā€. Moscow: Molodaya Gvardiya; 2012. [in Russian].

  64. Tutorsky AV, Govor EV, Ballard C. Miklouho-Maclayā€™s Legacy in Russian- and English-Language Academic Research, 1992ā€“2017. Archeologija, Ethnographia i Anthropologija Evrazii. 2019;47:103ā€“12.

    Google ScholarĀ 

  65. Uschmann G Geschichte der Zoologie und der zoologischen Anstalten in Jena 1779-1919. Jena: Gustav Fischer; 1959.

  66. Wallace AR. The Malay Archipelago. New York: Harper & Brothers; 1869.

    Google ScholarĀ 

  67. Watts E, Hossfeld U, Levit GS. Ecology and Evolution ā€“ Haeckelā€™s Darwinian paradigm. Trends Ecol Evol. 2019;34:681ā€“3.

    ArticleĀ  PubMedĀ  Google ScholarĀ 

  68. Webster EM. The Moon Man: A Biography of Nikolai Miklouho-Maclay. Berkeley: University of California Press; 1984.

    Google ScholarĀ 

  69. Wogawa S. Ernst Haeckel und der hypothetische Urkontinent Lemuria. Eobanus Verlag: Erfurt; 2015.

    Google ScholarĀ 

  70. Zigman P, Hossfeld U, Levit GS. Ernst Haeckels Biologie-Modernisierung und seine physiologisch-naturgeschichtliche ā€œOecologieā€ von 1866. Ann Hist Philos Biol. 2019;23:81ā€“109.

    Google ScholarĀ 

Download references

Acknowledgments

We thank the editors of the Frontiers in Zoology for inviting us to publish in the journal. We are grateful to the Russian Geographical Society (St. Petersburg) and especially to Maria Matveeva for providing us with advices as well as with visual and archival materials. We extend our thanks to the Archive of the Ernst-Haeckel-Haus and personally to Dr. Thomas Bach for providing us with the letters of Miklucho-Maclay to Ernst Haeckel. We thank cordially Ian Stewart (Halifax, Canada) and an anonymous reviewer for valuable suggestions.

Besides, we would like to thank Prof. Mikhail Shilin (St. Petersburg) for his valuable suggestions and Dr. Stefan Wogawa (Erfurt) for providing us with the high-quality map of Lemuria-continent. Dr. Alexander Lvov (St. Petersburg) is thanked for providing us with Maclayā€™s original publications.

Funding

No

Author information

Authors and Affiliations

Authors

Contributions

Equal. The author(s) read and approved the final manuscript.

Corresponding author

Correspondence to Georgy S. Levit.

Ethics declarations

Ethics approval and consent to participate

Not applicable.

Consent for publication

Yes

Competing interests

No

Additional information

Publisherā€™s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Levit, G.S., Hossfeld, U. Ernst Haeckel, Nikolai Miklucho-Maclay and the racial controversy over the Papuans. Front Zool 17, 16 (2020). https://doi.org/10.1186/s12983-020-00358-w

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1186/s12983-020-00358-w

Keywords