The Role of Serotonergic Gene Methylation in Regulating Anxiety-Related Personality Traits in Chimpanzees by Nicky Staes, Elaine E. Guevara, William D. Hopkins, Steven J. Schapiro, Marcel Eens, Chet C. Sherwood, Brenda J. Bradley

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Stable isotopes and predation marks shed new light on ammonoid habitat depth preferences by Marcin Machalski, Krzysztof Owocki, Zofia Dubicka, Oksana Malchyk, Weronika Wierny

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New data from the first discovered paleoparadoxiid (Desmostylia) specimen shed light into the morphological variation of the genus Neoparadoxia by Kumiko Matsui, Ana M. Valenzuela-Toro, Nicholas D. Pyenson

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A late Paleocene fauna from shallow-water chemosynthesis-based ecosystems, Spitsbergen, Svalbard by Krzysztof Hryniewicz, Kazutaka Amano, Maria Aleksandra Bitner, Jonas Hagström, Steffen Kiel, Adiël A. Klompmaker, Thomas Mörs, Cristina M. Robins, Andrzej Kaim

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Arthropod trace fossils from Eocene cold climate continental strata of King George Island, West Antarctica by Alfred Uchman, Andrzej Gaździcki, Błażej Błażejowski

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Speleothem and biofilm formation in a granite/dolerite cave, Northern Sweden by Therese Sallstedt, Magnus Ivarsson, Johannes Lundberg, Rabbe Sjöberg, Juan Ramón Vidal Romaní

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Correction to: Sea urchin growth dynamics at microstructural length scale revealed by Mn-labeling and cathodoluminescence imaging by Przemysław Gorzelak, Aurélie Dery, Philippe Dubois, Jarosław Stolarski

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Evidence of two lineages of metriorhynchid crocodylomorphs in the Lower Cretaceous of the Czech Republic by DANIEL MADZIA, SVEN SACHS, MARK T. YOUNG, ALEXANDER LUKENEDER, PETR SKUPIEN

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Fossil Sirenia from the Pleistocene of Qatar: new questions about the antiquity of sea cows in the Gulf Region by Nicholas D. Pyenson, Mehsin Al-Ansi, Clare M. Fieseler, Khalid Hassan Al Jaber, Katherine D. Klim, Jacques LeBlanc, Ahmad Mujthaba Dheen Mohamed, Ismail Al-Shaikh, Christopher D. Marshall

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Priapulid worms from the Cambrian of China shed light on reproduction in early animals by Xiao-yu Yang, Jean Vannier, Jie Yang, Deng Wang, Xi-guang Zhang

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Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland by Zdeněk Vašíček, Błażej Błażejowski, Andrzej Gaździcki, Maria Król, Jerzy Lefeld, Petr Skupien, Andrzej Wierzbowski

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Photosymbiosis in Late Triassic scleractinian corals from the Italian Dolomites by Katarzyna Frankowiak, Ewa Roniewicz, Jarosław Stolarski

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An insight into cancer palaeobiology: does the Mesozoic neoplasm support tissue organization field theory of tumorigenesis? by Dawid Surmik, Justyna Słowiak-Morkovina, Tomasz Szczygielski, Maciej Kamaszewski, Sudipta Kalita, Elżbieta M. Teschner, Dawid Dróżdż, Piotr Duda, Bruce M. Rothschild, Dorota Konietzko-Meier

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Like phoenix from the ashes: How modern baleen whales arose from a fossil “dark age” by Felix G. Marx, Erich M.G. Fitzgerald, R. Ewan Fordyce

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What Is Written on a Dog’s Face? Evaluating the Impact of Facial Phenotypes on Communication between Humans and Canines by Courtney L. Sexton, Colleen Buckley, Jake Lieberfarb, Francys Subiaul, Erin E. Hecht, Brenda J. Bradley

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Dinosaur senescence: a hadrosauroid with age-related diseases brings a new perspective of “old” dinosaurs by Justyna Słowiak, Tomasz Szczygielski, Bruce M. Rothschild, Dawid Surmik

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Echinoderm model systems, homology, and phylogenetic inference: Comment and reply to Paul (2021) by JENNIFER E. BAUER, SARAH L. SHEFFIELD, JOHNNY A. WATERS, COLIN D. SUMRALL

“…Unfortunately, this work includes many inaccuracies, non-reproducible analyses, and nonstandard method choices that confuse rather than advance the understanding of echinoderm paleobiology. Herein, we focus on key aspects of philosophy, methodology, and data reproducibility the publication of Paul (2021) raises that need to be addressed and considered by echinoderm researchers as they assess the concept of pan-dichoporite echinoderms.…”

New evidence for the antiquity of Desmostylus (Desmostylia) from the Skooner Gulch Formation of California by Kumiko Matsui, Nicholas D. Pyenson

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Evolution of postcranial skeleton in worm lizards inferred from its status in the Cretaceous stem-amphisbaenian Slavoia darevskii by Mateusz Tałanda

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New ischnacanthiform jaw bones from the Lower Devonian of Podolia, Ukraine by Victor Voichyshyn, Hubert Szaniawski

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