11 results found
    1. Evolutionary Biology

    Giant extinct caiman breaks constraint on the axial skeleton of extant crocodylians

    Torsten M Scheyer et al.
    The giant caiman Purussaurus from the Miocene of Venezuela is the first recorded member of crown Crocodylia having three sacrals, thus breaking the otherwise strict vertebral constraint of the group.
    1. Evolutionary Biology

    Morphology: Too hip for two sacral vertebrae

    Michelle R Stocker
    A complex pelvic morphology has been discovered in the fossils of one of the largest crocodylians.
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    1. Developmental Biology

    Specialized impulse conduction pathway in the alligator heart

    Bjarke Jensen et al.
    A specialized conduction pathway for the electrical impulse in the heart, previously thought to be associated with the endothermic mammals and birds only, is also present in the ectothermic crocodiles.
    1. Evolutionary Biology

    A new Heterodontosaurus specimen elucidates the unique ventilatory macroevolution of ornithischian dinosaurs

    Viktor J Radermacher et al.
    A new specimen of Heterodontosaurus elucidates how ornithischian dinosaurs evolved a body plan substantially different from that of other dinosaurs and what these differences meant for their breathing.
    1. Developmental Biology
    2. Evolutionary Biology

    Developmental hourglass and heterochronic shifts in fin and limb development

    Koh Onimaru et al.
    Omics approaches reveal conserved and diversified gene regulation between fin and limb development.
    1. Evolutionary Biology
    2. Immunology and Inflammation

    In-silico analysis of myeloid cells across the animal kingdom reveals neutrophil evolution by colony-stimulating factors

    Damilola Pinheiro et al.
    In-silico modeling of gene and protein emergence reveals how colony-stimulating factors contributed to the evolution and functional adaptions observed in mammalian neutrophils.
    1. Developmental Biology

    Evolution: The beat goes on

    Tobias Wang
    Why is the alligator heart so similar to the hearts of birds and mammals?
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    1. Evolutionary Biology

    Dinosaurs: A new, ‘hip’ way to breathe

    Marc R Spencer
    Ornithischians, one of the three major groups of dinosaurs, developed a unique mechanism to ensure airflow in the lungs.
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    1. Evolutionary Biology

    New light shed on the early evolution of limb-bone growth plate and bone marrow

    Jordi Estefa et al.
    A three-dimensional investigation of extinct-tetrapod limbs shows that even though bone elongation and blood-cell production are intimately related to mammal long bones, these functions actually appeared successively in tetrapod evolution.
    1. Evolutionary Biology

    Novel neuroanatomical integration and scaling define avian brain shape evolution and development

    Akinobu Watanabe et al.
    More integrated brains in crown birds evolved through a mosaic assembly of new evolutionary and developmental dynamics across neuroanatomical regions that occurred along the dinosaur-bird transition.

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