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  1. Unique genetic adaptations are present in bears of every species across the world. From (nearly) shutting down important organs during hibernation to preventing harm from lifestyles that could easily cause met...

    Authors: Courtney Willey and Ron Korstanje
    Citation: Frontiers in Zoology 2022 19:30
  2. Aeolid nudibranchs are well-known for their ability to incorporate cnidarian nematocysts and use them for defense; this process is tightly linked with the feeding preferences of molluscs. As many nudibranch gr...

    Authors: Irina A. Ekimova, Olga A. Vorobyeva, Anna L. Mikhlina, Dimitry M. Schepetov, Elena V. Vortsepneva, Tatiana I. Antokhina and Vladimir V. Malakhov
    Citation: Frontiers in Zoology 2022 19:29
  3. Energy demand for reproduction leads to a wide diversity of foraging and life-history strategy among wild animals, linking to a common objective to maximize reproductive success. Semelparous squid species in p...

    Authors: Dongming Lin, Na Zang, Kai Zhu, Gang Li and Xinjun Chen
    Citation: Frontiers in Zoology 2022 19:28
  4. Recent technological advances opened the opportunity to simultaneously study gene expression for thousands of individual cells on a genome-wide scale. The experimental accessibility of such single-cell RNA seq...

    Authors: Gordon Wiegleb, Susanne Reinhardt, Andreas Dahl and Nico Posnien
    Citation: Frontiers in Zoology 2022 19:27
  5. Predicting invasiveness requires an understanding of the propensity of a given species to thrive in areas with novel ecological challenges. Evaluation of realized niche shift of an invasive species in its inva...

    Authors: Zhenhua Luo, Monica A. Mowery, Xinlan Cheng, Qing Yang, Junhua Hu and Maydianne C. B. Andrade
    Citation: Frontiers in Zoology 2022 19:25
  6. Portunoidea (Heterotremata) is a morphologically disparate taxon of true crabs (Brachyura) best-known for many of its representatives being considered “swimming crabs”. The term “swimming crab”, however, somet...

    Authors: Dennis Hazerli, Christoph Gert Höpel and Stefan Richter
    Citation: Frontiers in Zoology 2022 19:24
  7. Sex differentiation can be viewed as a controlled regulatory balance between sex differentiation-related mRNAs and post-transcriptional mechanisms mediated by non-coding RNAs. In mammals, increasing evidence h...

    Authors: Xiujuan Zhang, Wenhua Wu, Jiabin Zhou, Linmiao Li, Haiying Jiang and Jinping Chen
    Citation: Frontiers in Zoology 2022 19:23
  8. Scallops are among the best-studied bivalve mollusks. However, adult nervous system and neurogenesis studies of scallops are limited. Here, we studied the localization of neurotransmitters (serotonin/5-HT, FMR...

    Authors: Marina Kniazkina and Vyacheslav Dyachuk
    Citation: Frontiers in Zoology 2022 19:22
  9. Division of labour (DOL) is ubiquitous across biological hierarchies. In eusocial insects, DOL is often characterized by age-related task allocation, but workers can flexibly change their tasks, allowing for D...

    Authors: Yasunari Tanaka, Masaru K. Hojo and Hiroyuki Shimoji
    Citation: Frontiers in Zoology 2022 19:20
  10. The radula, a chitinous membrane with embedded teeth, is one important molluscan autapomorphy. In some taxa (Polyplacophora and Patellogastropoda) one tooth type (the dominant lateral tooth) was studied intens...

    Authors: Wencke Krings, Jan-Ole Brütt and Stanislav N. Gorb
    Citation: Frontiers in Zoology 2022 19:19
  11. Due to their cost effectiveness, ease of use, and unlimited supply, immortalized cell lines are used in place of primary cells for a wide range of research purposes, including gene function studies, CRISPR-bas...

    Authors: Kyung Min Jung, Young Min Kim, Eunhui Yoo and Jae Yong Han
    Citation: Frontiers in Zoology 2022 19:18
  12. Intracellular sequestration requires specialized cellular and molecular mechanisms allowing a predator to retain and use specific organelles that once belonged to its prey. Little is known about how common cel...

    Authors: Jessica A. Goodheart, Vanessa Barone and Deirdre C. Lyons
    Citation: Frontiers in Zoology 2022 19:16
  13. Echinoderms are a phylum of marine invertebrates with close phylogenetic relationships to chordates. Many members of the phylum Echinodermata are capable of extensive post-traumatic regeneration and life-long ...

    Authors: Vladimir Mashanov, Lauren Whaley, Kenneth Davis, Thomas Heinzeller, Denis Jacob Machado, Robert W. Reid, Janice Kofsky and Daniel Janies
    Citation: Frontiers in Zoology 2022 19:15
  14. Pycnogonida (sea spiders) is the sister group of all other extant chelicerates (spiders, scorpions and relatives) and thus represents an important taxon to inform early chelicerate evolution. Notably, phylogen...

    Authors: Karina Frankowski, Katsumi Miyazaki and Georg Brenneis
    Citation: Frontiers in Zoology 2022 19:14
  15. Sexual selection has driven sexual dimorphism in agonistic behaviour in many species. Agonistic behaviour is fundamentally altered by domestication and captivity, but it is unclear whether ancestral sex differ...

    Authors: Irene Camerlink, Marianne Farish, Gareth Arnott and Simon P. Turner
    Citation: Frontiers in Zoology 2022 19:13
  16. The comparative embryology of Chelicerata has greatly advanced in recent years with the integration of classical studies and genetics, prominently spearheaded by developmental genetic works in spiders. Nonethe...

    Authors: Guilherme Gainett, Audrey R. Crawford, Benjamin C. Klementz, Calvin So, Caitlin M. Baker, Emily V. W. Setton and Prashant P. Sharma
    Citation: Frontiers in Zoology 2022 19:11
  17. Separation of biotic and abiotic impacts on species diversity distribution patterns across a significant climatic gradient is a challenge in the study of diversity maintenance mechanisms. The basic task is to ...

    Authors: Fang Luo, Ling-Zeng Meng, Jian Wang and Yan-Hong Liu
    Citation: Frontiers in Zoology 2022 19:10
  18. Relatively few studies have examined the interactive effects of ecological factors on physiological responses in wild animals. Nearly all of them have been short-term investigations that did not include experi...

    Authors: Aneta Arct, Szymon M. Drobniak, Anna Dubiec, Rafał Martyka, Joanna Sudyka, Lars Gustafsson and Mariusz Cichoń
    Citation: Frontiers in Zoology 2022 19:9
  19. The diversity of biological and ecological characteristics of organisms, and the underlying genetic patterns and processes of speciation, makes the development of universally applicable genetic species delimit...

    Authors: Shahan Derkarabetian, James Starrett and Marshal Hedin
    Citation: Frontiers in Zoology 2022 19:8
  20. The onset of morphological differences between related groups can be tracked at early stages during embryological development. This is expressed in functional traits that start with minor variations, but event...

    Authors: Faviel A. López-Romero, Fidji Berio, Daniel Abed-Navandi and Jürgen Kriwet
    Citation: Frontiers in Zoology 2022 19:7
  21. Despite its important implications in behavioural and evolutionary ecology, male mate choice has been poorly studied, and the relative contribution of personality and morphological traits remains largely unkno...

    Authors: Chunlin Li, Xinyu Zhang, Peng Cui, Feng Zhang and Baowei Zhang
    Citation: Frontiers in Zoology 2022 19:5
  22. Glucocorticoids (e.g. cortisol) are associated with variation in social behavior, and previous studies have linked baseline as well as challenge-induced glucocorticoid concentrations to dominance status. It is...

    Authors: Taylor L. Rystrom, Romy C. Prawitt, S. Helene Richter, Norbert Sachser and Sylvia Kaiser
    Citation: Frontiers in Zoology 2022 19:4
  23. Temperature stress is one of the crucial factors determining geographical distribution of insect species. Most of them are active in moderate temperatures, however some are capable of surviving in extremely hi...

    Authors: Jan Lubawy, Szymon Chowański, Zbigniew Adamski and Małgorzata Słocińska
    Citation: Frontiers in Zoology 2022 19:1
  24. RNA interference (RNAi) has emerged as a powerful tool for knocking-down gene function in diverse taxa including arthropods for both basic biological research and application in pest control. The conservation ...

    Authors: Sonja Mehlhorn, Vera S. Hunnekuhl, Sven Geibel, Ralf Nauen and Gregor Bucher
    Citation: Frontiers in Zoology 2021 18:60
  25. Efficient transfer of chemical signals is important for successful mating in many animal species. Multiple evolutionary lineages of animals evolved direct sex pheromone transmission during traumatic mating—the...

    Authors: Lisa M. Schulte, An Martel, Raciel Cruz-Elizalde, Aurelio Ramírez-Bautista and Franky Bossuyt
    Citation: Frontiers in Zoology 2021 18:59
  26. A basal spicule of the hexactinellid sponge Monorhaphis chuni may reach up to 3 m in length and 10 mm in diameter, an extreme case of large spicule size. Generally, sponge spicules are of scales from micrometers ...

    Authors: Andrzej Pisera, Magdalena Łukowiak, Sylvie Masse, Konstantin Tabachnick, Jane Fromont, Hermann Ehrlich and Marco Bertolino
    Citation: Frontiers in Zoology 2021 18:58
  27. Centipedes are terrestrial, predatory arthropods with specialized sensory organs. However, many aspects of their sensory biology are still unknown. This also concerns hygroreception, which is especially import...

    Authors: Andy Sombke, Jörg Rosenberg, Gero Hilken and Carsten H. G. Müller
    Citation: Frontiers in Zoology 2021 18:57
  28. Density-dependent change in aggressive behavior contributes to the population regulation of many small rodents, but the underlying neurological mechanisms have not been examined in field conditions. We hypothe...

    Authors: Shuli Huang, Guoliang Li, Yongliang Pan, Jing Liu, Jidong Zhao, Xin Zhang, Wei Lu, Xinrong Wan, Charles J. Krebs, Zuoxin Wang, Wenxuan Han and Zhibin Zhang
    Citation: Frontiers in Zoology 2021 18:56
  29. Mammalian mandible and cranium are well-established model systems for studying canalization and developmental stability (DS) as two elements of developmental homeostasis. Nematode infections are usually acquir...

    Authors: Vida Jojić, Borislav Čabrilo, Olivera Bjelić-Čabrilo, Vladimir M. Jovanović, Ivana Budinski, Mladen Vujošević and Jelena Blagojević
    Citation: Frontiers in Zoology 2021 18:55
  30. Kinorhynch segmentation differs from the patterns found in Chordata, Arthropoda and Annelida which have coeloms and circulatory systems. Due to these differences and their obsolete status as ‘Aschelminthes’, t...

    Authors: Maria Herranz, Taeseo Park, Maikon Di Domenico, Brian S. Leander, Martin V. Sørensen and Katrine Worsaae
    Citation: Frontiers in Zoology 2021 18:54
  31. Most living marine organisms have a biphasic life cycle dependent on metamorphosis and settlement. These critical life-history events mean that a developmentally competent larva undergoes a range of coordinate...

    Authors: Paula Suarez-Bregua, Sofia Rosendo, Pilar Comesaña, Lucia Sánchez-Ruiloba, Paloma Morán, Miquel Planas and Josep Rotllant
    Citation: Frontiers in Zoology 2021 18:52
  32. The Yarkand hare (Lepus yarkandensis Günther, 1875) is endemic to oasis and desert areas around the Tarim Basin in the Xinjiang Uyghur Autonomous Region of northwest China; however, genome-wide information for th...

    Authors: Buweihailiqiemu Ababaikeri, Yucong Zhang, Huiying Dai and Wenjuan Shan
    Citation: Frontiers in Zoology 2021 18:50
  33. Quantity discrimination, the ability to discriminate a magnitude of difference or discrete numerical information, plays a key role in animal behavior. While quantitative ability has been well documented in fis...

    Authors: Feng-Chun Lin, Martin J. Whiting, Ming-Ying Hsieh, Pei-Jen Lee Shaner and Si-Min Lin
    Citation: Frontiers in Zoology 2021 18:49
  34. Temperate bat species use extended torpor to conserve energy when ambient temperatures are low and food resources are scarce. Previous research suggests that migratory bat species and species known to roost in...

    Authors: Riley F. Bernard, Emma V. Willcox, Reilly T. Jackson, Veronica A. Brown and Gary F. McCracken
    Citation: Frontiers in Zoology 2021 18:48
  35. In many mammalian species, once the permanent teeth have erupted, the only change to dentition is a gradual loss of tooth surface/height through wear. The crown of the teeth cannot be repaired once worn. When ...

    Authors: Roberta Chirichella, Anna Maria De Marinis, Boštjan Pokorny and Marco Apollonio
    Citation: Frontiers in Zoology 2021 18:47
  36. Ant colonies are plagued by a diversity of arthropod guests, which adopt various strategies to avoid or to withstand host attacks. Chemical mimicry of host recognition cues is, for example, a common integratio...

    Authors: Christoph von Beeren, Adrian Brückner, Philipp O. Hoenle, Bryan Ospina-Jara, Daniel J. C. Kronauer and Nico Blüthgen
    Citation: Frontiers in Zoology 2021 18:46

    The Correction to this article has been published in Frontiers in Zoology 2022 19:2

  37. One of the most prominent life-history trade-offs involves the cost of reproduction. Oxidative stress has been proposed to be involved in this trade-off and has been associated with reduced life span. There is...

    Authors: Paul Juan Jacobs, Daniel William Hart and Nigel Charles Bennett
    Citation: Frontiers in Zoology 2021 18:45
  38. Many annelids, including well-studied species such as Platynereis, show similar structured segments along their body axis (homonomous segmentation). However, numerous annelid species diverge from this pattern and...

    Authors: Nadezhda Rimskaya-Korsakova, Nadezda Karaseva, Timofei Pimenov, Hans Tore Rapp, Eve Southward, Elena Temereva and Katrine Worsaae
    Citation: Frontiers in Zoology 2021 18:44
  39. Interspecific interactions within ecological networks can influence animal fitness and behaviour, including nest-site selection of birds and ants. Previous studies revealed that nesting birds and ants may bene...

    Authors: Marta Maziarz, Richard K. Broughton, Luca Pietro Casacci, Grzegorz Hebda, István Maák, Gema Trigos-Peral and Magdalena Witek
    Citation: Frontiers in Zoology 2021 18:43
  40. Mitochondrial function involves the interplay between mitochondrial and nuclear genomes. Such mitonuclear interactions can be disrupted by the introgression of mitochondrial DNA between taxa or divergent popul...

    Authors: Yuting Ding, Wenli Chen, Qianqian Li, Stephen J. Rossiter and Xiuguang Mao
    Citation: Frontiers in Zoology 2021 18:42