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  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. Research

    Dietary specialization drives multiple independent losses and gains in the bitter taste gene repertoire of Laurasiatherian Mammals

    Bitter taste perception is essential for species with selective food intake, enabling them to avoid unpalatable or toxic items. Previous studies noted a marked variation in the number of TAS2R genes among various...

    Zhijin Liu, Guangjian Liu, Frank Hailer, Pablo Orozco-terWengel, Xinxin Tan, Jundong Tian, Zhongze Yan, Baowei Zhang and Ming Li

    Frontiers in Zoology 2016 13:28

    Published on: 29 June 2016

  15. Research

    Immunohistochemical and ultrastructural properties of the larval ciliary band-associated strand in the sea urchin Hemicentrotus pulcherrimus

    The swimming activity of sea urchin larvae is dependent on the ciliary band (CB) on the larval surface and is regulated by several neurotransmitters, including serotonin (5HT), dopamine, and γ-aminobutyric aci...

    Hideki Katow, Tomoko Katow, Hiromi Yoshida, Masato Kiyomoto and Isao Uemura

    Frontiers in Zoology 2016 13:27

    Published on: 16 June 2016

  16. Research

    Visualization of the 3D structures of small organisms via LED-SIM

    Innovative new techniques that aid in the visualization of microscopic anatomical structures have improved our understanding of organismal biology significantly. It is often challenging to observe internal 3D ...

    Yongying Ruan, Dan Dan, Mengna Zhang, Ming Bai, Ming Lei, Baoli Yao and Xingke Yang

    Frontiers in Zoology 2016 13:26

    Published on: 14 June 2016

  17. Research

    Expression of 5α- and 5β-reductase in spinal cord and muscle of birds with different courtship repertoires

    Through the actions of one or more isoforms of the enzyme 5α-reductase in many male reproductive tissues, circulating testosterone (T) undergoes metabolic conversion into 5α-dihydrotestosterone (DHT), which bi...

    Matthew J. Fuxjager, Eric R. Schuppe, John Hoang, Jennifer Chew, Mital Shah and Barney A. Schlinger

    Frontiers in Zoology 2016 13:25

    Published on: 10 June 2016

  18. Research

    Plasticity varies with boldness in a weakly-electric fish

    The expression of animal personality is indicated by patterns of consistency in individual behaviour. Often, the differences exhibited between individuals are consistent across situations. However, between som...

    Kyriacos Kareklas, Gareth Arnott, Robert W. Elwood and Richard A. Holland

    Frontiers in Zoology 2016 13:22

    Published on: 6 June 2016

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