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  1. Fat storage is required for the life cycle of many organisms. The primary fat depot for most vertebrates is white adipose tissue. However, in primitive vertebrates (e.g., agnathan group and elasmobranchs), the...

    Authors: Wei Zhu, Meihua Zhang, Liming Chang, Wenbo Zhu, Cheng Li, Feng Xie, Huan Zhang, Tian Zhao and Jianping Jiang

    Citation: Frontiers in Zoology 2019 16:42

    Content type: Research

    Published on:

  2. Within-species skull shape variation of marsupial mammals is widely considered low and strongly size-dependent (allometric), possibly due to developmental constraints arising from the altricial birth of marsup...

    Authors: Vera Weisbecker, Thomas Guillerme, Cruise Speck, Emma Sherratt, Hyab Mehari Abraha, Alana C. Sharp, Claire E. Terhune, Simon Collins, Stephen Johnston and Olga Panagiotopoulou

    Citation: Frontiers in Zoology 2019 16:41

    Content type: Research

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  3. Nervous tissue is an inherent component of the many specialized genital structures for transferring sperm directly into the female’s body. However, the male copulatory organ of spiders was considered a puzzlin...

    Authors: Tim M. Dederichs, Carsten H. G. Müller, Lenka Sentenská, Elisabeth Lipke, Gabriele Uhl and Peter Michalik

    Citation: Frontiers in Zoology 2019 16:39

    Content type: Research

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  4. In contrast to traditional models of purifying selection and a single aposematic signal in Müllerian complexes, some communities of unprofitable prey contain members with multiple aposematic patterns. Processe...

    Authors: Matej Bocek, Dominik Kusy, Michal Motyka and Ladislav Bocak

    Citation: Frontiers in Zoology 2019 16:38

    Content type: Research

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  5. Although the sensory drive hypothesis can explain the geographic variation in echolocation frequencies of some bat species, the molecular mechanisms underlying this phenomenon are still unclear. The three line...

    Authors: Hanbo Zhao, Hui Wang, Tong Liu, Sen Liu, Longru Jin, Xiaobin Huang, Wentao Dai, Keping Sun and Jiang Feng

    Citation: Frontiers in Zoology 2019 16:37

    Content type: Research

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  6. Pallenopsis patagonica (Hoek, 1881) is a morphologically and genetically variable sea spider species whose taxonomic classification is challenging. Currently, it is considered as a species complex including sever...

    Authors: Jana S. Dömel, Till-Hendrik Macher, Lars Dietz, Sabrina Duncan, Christoph Mayer, Andrey Rozenberg, Katherine Wolcott, Florian Leese and Roland R. Melzer

    Citation: Frontiers in Zoology 2019 16:36

    Content type: Research

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  7. Novel feeding adaptations often facilitate adaptive radiation and diversification. But the evolutionary origins of such feeding adaptations can be puzzling if they require concordant change in multiple compone...

    Authors: Tomonari Kaji, Chihong Song, Kazuyoshi Murata, Shigenori Nonaka, Kota Ogawa, Yusuke Kondo, Susumu Ohtsuka and A. Richard Palmer

    Citation: Frontiers in Zoology 2019 16:35

    Content type: Research

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  8. Monogononta is a large clade of rotifers comprised of diverse morphological forms found in a wide range of ecological habitats. Most monogonont species display cyclical parthenogenesis, where generations of as...

    Authors: Ludwik Gąsiorowski, Anlaug Furu and Andreas Hejnol

    Citation: Frontiers in Zoology 2019 16:33

    Content type: Research

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  9. Large numbers of endemic species inhabit subantarctic continental coasts and islands that are characterised by highly variable environmental conditions. Southern hemisphere populations of taxa that are morphol...

    Authors: Małgorzata Zbawicka, Jonathan P. A. Gardner and Roman Wenne

    Citation: Frontiers in Zoology 2019 16:32

    Content type: Research

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  10. Selecting high-quality habitat and the optimal time to reproduce can increase individual fitness and is a strong evolutionary factor shaping animal populations. However, few studies have investigated the inter...

    Authors: Petra Sumasgutner, Julien Terraube, Aurélie Coulon, Alexandre Villers, Nayden Chakarov, Luise Kruckenhauser and Erkki Korpimäki

    Citation: Frontiers in Zoology 2019 16:31

    Content type: Research

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  11. Over the last years, the amphipod crustacean Parhyale hawaiensis has developed into an attractive marine animal model for evolutionary developmental studies that offers several advantages over existing experiment...

    Authors: Christin Wittfoth, Steffen Harzsch, Carsten Wolff and Andy Sombke

    Citation: Frontiers in Zoology 2019 16:30

    Content type: Research

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  12. The trochozoan excitatory peptide (EP) and its ortholog, the arthropod CCHamide, are neuropeptides that are only investigated in very few animal species. Previous studies on different trochozoan species focuse...

    Authors: Daniel Thiel, Philipp Bauknecht, Gáspár Jékely and Andreas Hejnol

    Citation: Frontiers in Zoology 2019 16:28

    Content type: Research

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  13. Birdsong, a key model in animal communication studies, has been the focus of intensive research. Song traits are commonly considered to reflect differences in individual or territory quality. Yet, few studies ...

    Authors: Marc Naguib, Joris Diehl, Kees van Oers and Lysanne Snijders

    Citation: Frontiers in Zoology 2019 16:27

    Content type: Research

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  14. Animals inhabiting high altitudes consistently show slow life-histories. The pace-of-life syndrome (POLS) hypothesis posits behavioural, physiological and/or morphological traits that mediate the trade-off bet...

    Authors: Jiapeng Qu, Denis Réale, Quinn E. Fletcher and Yanming Zhang

    Citation: Frontiers in Zoology 2019 16:26

    Content type: Research

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  15. Male-male aerial contests of territorial butterflies are difficult to explain by major contest models based on game theory because of butterflies’ apparent inability to inflict substantial costs on their oppon...

    Authors: Tsuyoshi Takeuchi, Shinji Yabuta and Hiroyuki Takasaki

    Citation: Frontiers in Zoology 2019 16:22

    Content type: Research

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  16. Mammals in the far north are exposed to extreme seasonal changes in environmental conditions, such as temperature and photoperiod, which have notable effects on animal physiology and behaviour. The wolverine (Gul...

    Authors: Alexandra Thiel, Alina L. Evans, Boris Fuchs, Jon M. Arnemo, Malin Aronsson and Jens Persson

    Citation: Frontiers in Zoology 2019 16:21

    Content type: Research

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  17. Poaching is a prominent source of ‘hidden hurdles’, cryptic impacts of human activities that may hinder the conservation of animal populations. Estimating poaching mortality is challenging, as the evidence for...

    Authors: Luca Corlatti, Ana Sanz-Aguilar, Giacomo Tavecchia, Alessandro Gugiatti and Luca Pedrotti

    Citation: Frontiers in Zoology 2019 16:20

    Content type: Research

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  18. Mucus and mucus glands are important features of the amphibian cutis. In tree frogs, the mucus glands and their secretions are crucial components of the adhesive digital pads of these animals. Despite a variet...

    Authors: Julian K.A. Langowski, Saranshu Singla, Alex Nyarko, Henk Schipper, Frank T. van den Berg, Sukhmanjot Kaur, Henry C. Astley, Sander W.S. Gussekloo, Ali Dhinojwala and Johan L. van Leeuwen

    Citation: Frontiers in Zoology 2019 16:19

    Content type: Research

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  19. Immunohistochemical studies of hearts from the lesser spotted dogfish, Scyliorhinus canicula (Chondrichthyes) revealed that the pan-myosin heavy chain (pan-MyHC) antibody MF20 homogeneously labels all the myocard...

    Authors: Miguel A. López-Unzu, Ana Carmen Durán, María Teresa Soto-Navarrete, Valentín Sans-Coma and Borja Fernández

    Citation: Frontiers in Zoology 2019 16:18

    Content type: Research

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  20. Lizards are excellent models to study the adaptations of the visual system to different scenarios, and surface-dwelling representatives have been relatively well studied. In contrast, very little is known abou...

    Authors: Carola A. M. Yovanovich, Michele E. R. Pierotti, Miguel Trefaut Rodrigues and Taran Grant

    Citation: Frontiers in Zoology 2019 16:17

    Content type: Research

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  21. Onychophorans, commonly known as velvet worms, display a remarkable diversity of reproductive strategies including oviparity, and placentotrophic, lecithotrophic, matrotrophic or combined lecithotrophic/matrot...

    Authors: Sandra Treffkorn, Oscar Yesid Hernández-Lagos and Georg Mayer

    Citation: Frontiers in Zoology 2019 16:16

    Content type: Research

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  22. Marine and intertidal organisms face the rhythmic environmental changes induced by tides. The large amplitude of spring tides that occur around full and new moon may threaten nests of ground-nesting birds. The...

    Authors: Silvia Plaschke, Martin Bulla, Medardo Cruz-López, Salvador Gómez del Ángel and Clemens Küpper

    Citation: Frontiers in Zoology 2019 16:15

    Content type: Research

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  23. Researchers often document wildlife surveys using images. These images contain data that can be used to understand alterative research objectives, even years after they were originally captured. We have develo...

    Authors: Caitlin E. Black, Hannah S. Mumby and Michelle D. Henley

    Citation: Frontiers in Zoology 2019 16:14

    Content type: Methodology

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  24. Animal vocal signals encode very important information for communication during which the importance of temporal and spectral characteristics of vocalizations is always asymmetrical and species-specific. Howev...

    Authors: Yanzhu Fan, Xizi Yue, Jing Yang, Jiangyan Shen, Di Shen, Yezhong Tang and Guangzhan Fang

    Citation: Frontiers in Zoology 2019 16:13

    Content type: Research

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  25. In mammals, the hibernating state is characterized by biochemical adjustments, which include metabolic rate depression and a shift in the primary fuel oxidized from carbohydrates to lipids. A number of studies...

    Authors: Blandine Chazarin, Kenneth B. Storey, Anna Ziemianin, Stéphanie Chanon, Marine Plumel, Isabelle Chery, Christine Durand, Alina L. Evans, Jon M. Arnemo, Andreas Zedrosser, Jon E. Swenson, Guillemette Gauquelin-Koch, Chantal Simon, Stephane Blanc, Etienne Lefai and Fabrice Bertile

    Citation: Frontiers in Zoology 2019 16:12

    Content type: Research

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  26. Shortening photoperiod triggers seasonal adjustments like cessation of reproduction, molting and heterothermy. However there is a considerable among-individual variation in photoresponsiveness within one popul...

    Authors: Anna S. Przybylska, Michał S. Wojciechowski and Małgorzata Jefimow

    Citation: Frontiers in Zoology 2019 16:11

    Content type: Research

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  27. Intermittent fasting (IF) is receiving increasing attention as an alternative to continuous restriction of calories because of its benefits in aging-related disease prevention and lifespan extension. However, ...

    Authors: Guang-Yun Li and Zhi-Qiang Zhang

    Citation: Frontiers in Zoology 2019 16:10

    Content type: Research

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  28. Entoprocta affinities within Lophotrochozoa remain unclear. In different studies, entoprocts are considered to be related to different groups, including Cycliophora, Bryozoa, Annelida, and Mollusca. The use of...

    Authors: Anastasia O. Borisanova, Vladimir V. Malakhov and Elena N. Temereva

    Citation: Frontiers in Zoology 2019 16:9

    Content type: Research

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  29. Effective communication between sexual partners is essential for successful reproduction. Avian parents with biparental incubation need to know how to negotiate, when and who will incubate, and how to harmoniz...

    Authors: Martin Sládeček, Eva Vozabulová, Kateřina Brynychová and Miroslav E. Šálek

    Citation: Frontiers in Zoology 2019 16:7

    Content type: Research

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  30. Recent phylogenomic analyses congruently reveal a basal clade which consists of Oweniidae and Mageloniidae as sister group to the remaining Annelida. These results indicate that the last common ancestor of Ann...

    Authors: Patrick Beckers, Conrad Helm, Günter Purschke, Katrine Worsaae, Pat Hutchings and Thomas Bartolomaeus

    Citation: Frontiers in Zoology 2019 16:6

    Content type: Research

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  31. Previous analyses of factors influencing footfall timings and gait selection in quadrupeds have focused on the implications for energetic cost or gait mechanics separately. Here we present a model for symmetri...

    Authors: Charlotte Elizabeth Miller, Laura Elizabeth Johnson, Henry Pinkard, Pierre Lemelin and Daniel Schmitt

    Citation: Frontiers in Zoology 2019 16:5

    Content type: Research

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  32. The fitness of holometabolous insects depends largely on resources acquired at the larval stage. Larval density is an important factor modulating larval resource-acquisition, influencing adult survival, reprod...

    Authors: Juliano Morimoto, Binh Nguyen, Hue Dinh, Anh The Than, Phillip W. Taylor and Fleur Ponton

    Citation: Frontiers in Zoology 2019 16:4

    Content type: Research

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  33. The relationships among energy metabolic levels, behavioral and other physiological traits help to determine the trade-off of energy allocation between different traits and the evolution of life-history driven...

    Authors: Wenyi Zhang, Cuijuan Niu, Yukun Liu and Kenneth B. Storey

    Citation: Frontiers in Zoology 2019 16:3

    Content type: Research

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  34. The Australian dingo continues to cause debate amongst Aboriginal people, pastoralists, scientists and the government in Australia. A lingering controversy is whether the dingo has been tamed and has now rever...

    Authors: J. William O. Ballard and Laura A. B. Wilson

    Citation: Frontiers in Zoology 2019 16:2

    Content type: Debate

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  35. Habitat quality is one main trigger for the persistence of butterflies. The effects of the influencing biotic and abiotic factors may be enhanced by the challenging conditions in high-alpine environments. To b...

    Authors: Stefan Ehl, Niklas Böhm, Manuel Wörner, László Rákosy and Thomas Schmitt

    Citation: Frontiers in Zoology 2019 16:1

    Content type: Research

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  36. Trait based functional and community ecology is en vogue. Most studies, however, ignore phenotypical diversity by characterizing entire species considering only trait means rather than their variability. Phenotyp...

    Authors: Adrian Brückner, Romina Schuster, Katja Wehner and Michael Heethoff

    Citation: Frontiers in Zoology 2018 15:50

    Content type: Research

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  37. Among bryozoans, cyclostome anatomy is the least studied by modern methods. New data on the nervous system fill the gap in our knowledge and make morphological analysis much more fruitful to resolve some quest...

    Authors: Elena N. Temereva and Igor A. Kosevich

    Citation: Frontiers in Zoology 2018 15:48

    Content type: Research

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  38. Amphibian defence against predators and microorganisms is directly related to cutaneous glands that produce a huge number of different toxins. These glands are distributed throughout the body but can form accu...

    Authors: Pedro Luiz Mailho-Fontana, Marta Maria Antoniazzi, Juliana Mozer Sciani, Daniel Carvalho Pimenta, Katia Cristina Barbaro and Carlos Jared

    Citation: Frontiers in Zoology 2018 15:46

    Content type: Research

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  39. It is widely assumed that variation in fitness components has a physiological basis that might underlie selection on trade-offs, but the mechanisms driving decreased survival and future fecundity remain elusiv...

    Authors: Melinda A. Fowler, Mélissa Paquet, Véronique Legault, Alan A. Cohen and Tony D. Williams

    Citation: Frontiers in Zoology 2018 15:45

    Content type: Research

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