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  1. Research

    Start early! Does social instability during the pre- and early postnatal development prepare male wild cavies for social challenge later in life?

    The social environment the mother experiences during pregnancy and lactation can powerfully influence the offspring’s behavioural profile. Our previous studies in wild cavies show that two different social env...

    Katja Siegeler, Lars Lewejohann, Klaus Failing, Norbert Sachser and Sylvia Kaiser

    Frontiers in Zoology 2017 14:2

    Published on: 14 January 2017

  2. Research

    Concordant morphological and molecular clines in a contact zone of the Common and Spined toad (Bufo bufo and B. spinosus) in the northwest of France

    Hybrid zones are regions where individuals of two species meet and produce hybrid progeny, and are often regarded as natural laboratories to understand the process of species formation. Two microevolutionary p...

    Jan W. Arntzen, Tania Trujillo, Roland Butôt, Klaas Vrieling, Onno Schaap, Jorge Gutiérrez-Rodríguez and Iñigo Martínez-Solano

    Frontiers in Zoology 2016 13:52

    Published on: 19 December 2016

  3. Research

    Ambient temperature affects postnatal litter size reduction in golden hamsters

    To better understand how different ambient temperatures during lactation affect survival of young, we studied patterns of losses of pups in golden hamsters (Mesocricetus auratus) at different ambient temperatures...

    Sarah A. Ohrnberger, Raquel Monclús, Heiko G. Rödel and Teresa G. Valencak

    Frontiers in Zoology 2016 13:51

    Published on: 24 November 2016

  4. Research

    Comparison of neuromuscular development in two dinophilid species (Annelida) suggests progenetic origin of Dinophilus gyrociliatus

    Several independent meiofaunal lineages are suggested to have originated through progenesis, however, morphological support for this heterochronous process is still lacking. Progenesis is defined as an arrest ...

    Alexandra Kerbl, Elizaveta G. Fofanova, Tatiana D. Mayorova, Elena E. Voronezhskaya and Katrine Worsaae

    Frontiers in Zoology 2016 13:49

    Published on: 8 November 2016

  5. Review

    Odonata (dragonflies and damselflies) as a bridge between ecology and evolutionary genomics

    Odonata (dragonflies and damselflies) present an unparalleled insect model to integrate evolutionary genomics with ecology for the study of insect evolution. Key features of Odonata include their ancient phylo...

    Seth Bybee, Alex Córdoba-Aguilar, M. Catherine Duryea, Ryo Futahashi, Bengt Hansson, M. Olalla Lorenzo-Carballa, Ruud Schilder, Robby Stoks, Anton Suvorov, Erik I. Svensson, Janne Swaegers, Yuma Takahashi, Phillip C. Watts and Maren Wellenreuther

    Frontiers in Zoology 2016 13:46

    Published on: 10 October 2016

  6. Research

    Plumage quality mediates a life-history trade-off in a migratory bird

    Moult is one of the most costly activities in the annual cycle of birds and most avian species separate moult from other energy-demanding activities, such as migration. To this end, young birds tend to undergo...

    Patrycja Podlaszczuk, Maciej Kamiński, Radosław Włodarczyk, Krzysztof Kaczmarek, Tomasz Janiszewski and Piotr Minias

    Frontiers in Zoology 2016 13:47

    Published on: 10 October 2016

  7. Research

    The cephalopod arm crown: appendage formation and differentiation in the Hawaiian bobtail squid Euprymna scolopes

    Cephalopods are a highly derived class of molluscs that adapted their body plan to a more active and predatory lifestyle. One intriguing adaptation is the modification of the ventral foot to form a bilaterally...

    Marie-Therese Nödl, Alexandra Kerbl, Manfred G. Walzl, Gerd B. Müller and Heinz Gert de Couet

    Frontiers in Zoology 2016 13:44

    Published on: 29 September 2016

  8. Research

    Development of foraging skills in two orangutan populations: needing to learn or needing to grow?

    Orangutans have one of the slowest-paced life histories of all mammals. Whereas life-history theory suggests that the time to reach adulthood is constrained by the time needed to reach adult body size, the nee...

    Caroline Schuppli, Sofia I. F. Forss, Ellen J. M. Meulman, Nicole Zweifel, Kevin C. Lee, Evasari Rukmana, Erin R. Vogel, Maria A. van Noordwijk and Carel P. van Schaik

    Frontiers in Zoology 2016 13:43

    Published on: 29 September 2016

  9. Research

    Comparative localization of serotonin-like immunoreactive cells in Thaliacea informs tunicate phylogeny

    Thaliaceans is one of the understudied classes of the phylum Tunicata. In particular, their phylogenetic relationships remain an issue of debate. The overall pattern of serotonin (5-HT) distribution is an exce...

    Alberto Valero-Gracia, Rita Marino, Fabio Crocetta, Valeria Nittoli, Stefano Tiozzo and Paolo Sordino

    Frontiers in Zoology 2016 13:45

    Published on: 29 September 2016

  10. Research

    The bear circadian clock doesn’t ‘sleep’ during winter dormancy

    Most biological functions are synchronized to the environmental light:dark cycle via a circadian timekeeping system. Bears exhibit shallow torpor combined with metabolic suppression during winter dormancy. We ...

    Heiko T. Jansen, Tanya Leise, Gordon Stenhouse, Karine Pigeon, Wayne Kasworm, Justin Teisberg, Thomas Radandt, Robert Dallmann, Steven Brown and Charles T. Robbins

    Frontiers in Zoology 2016 13:42

    Published on: 17 September 2016

  11. Research

    Crown-of-thorns starfish have true image forming vision

    Photoreceptors have evolved numerous times giving organisms the ability to detect light and respond to specific visual stimuli. Studies into the visual abilities of the Asteroidea (Echinodermata) have recently...

    Ronald Petie, Anders Garm and Michael R. Hall

    Frontiers in Zoology 2016 13:41

    Published on: 6 September 2016

  12. Research

    Contextual flexibility in the vocal repertoire of an Amazon parrot

    Understanding the role of avian vocal communication in social organisation requires knowledge of the vocal repertoire used to convey information. Parrots use acoustic signals in a variety of social contexts, b...

    Adolfo Christian Montes-Medina, Alejandro Salinas-Melgoza and Katherine Renton

    Frontiers in Zoology 2016 13:40

    Published on: 26 August 2016

  13. Research

    Resolving the evolution of the mammalian middle ear using Bayesian inference

    The minute, finely-tuned ear ossicles of mammals arose through a spectacular evolutionary transformation from their origins as a load-bearing jaw joint. This involved detachment from the postdentary trough of ...

    Héctor E. Ramírez-Chaves, Vera Weisbecker, Stephen Wroe and Matthew J. Phillips

    Frontiers in Zoology 2016 13:39

    Published on: 24 August 2016

  14. Research

    Artificial selection reveals the energetic expense of producing larger eggs

    The amount of resources provided by the mother before birth has important and long-lasting effects on offspring fitness. Despite this, there is a large amount of variation in maternal investment seen in natura...

    Joel L. Pick, Pascale Hutter, Christina Ebneter, Ann-Kathrin Ziegler, Marta Giordano and Barbara Tschirren

    Frontiers in Zoology 2016 13:38

    Published on: 23 August 2016

  15. Research

    Stable isotope signatures reflect dietary diversity in European forest moths

    Information on larval diet of many holometabolous insects remains incomplete. Carbon (C) and nitrogen (N) stable isotope analysis in adult wing tissue can provide an efficient tool to infer such trophic relati...

    Marc-Oliver Adams, Carlo Lutz Seifert, Lisamarie Lehner, Christine Truxa, Wolfgang Wanek and Konrad Fiedler

    Frontiers in Zoology 2016 13:37

    Published on: 22 August 2016

  16. Research

    Unique wing scale photonics of male Rajah Brooke’s birdwing butterflies

    Ultrastructures in butterfly wing scales can take many shapes, resulting in the often striking coloration of many butterflies due to interference of light. The plethora of coloration mechanisms is dazzling, bu...

    Bodo D. Wilts, Marco A. Giraldo and Doekele G. Stavenga

    Frontiers in Zoology 2016 13:36

    Published on: 12 August 2016

  17. Research

    Passive acoustic monitoring reveals group ranging and territory use: a case study of wild chimpanzees (Pan troglodytes)

    Assessing the range and territories of wild mammals traditionally requires years of data collection and often involves directly following individuals or using tracking devices. Indirect and non-invasive method...

    Ammie K. Kalan, Alex K. Piel, Roger Mundry, Roman M. Wittig, Christophe Boesch and Hjalmar S. Kühl

    Frontiers in Zoology 2016 13:34

    Published on: 8 August 2016

  18. Research

    Allometric scaling of the elevation of maternal energy intake during lactation

    In most mammals, lactating mothers dramatically increase their food intake after parturition and reach a peak intake rate after a certain time while their offspring continue to grow. A common view, perpetuated...

    Frédéric Douhard, Jean-François Lemaître, Wendy M. Rauw and Nicolas C. Friggens

    Frontiers in Zoology 2016 13:32

    Published on: 13 July 2016

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