426 results found
    1. Evolutionary Biology

    Preservation of three-dimensional anatomy in phosphatized fossil arthropods enriches evolutionary inference

    Achim H Schwermann et al.
    X-ray imaging reveals well-preserved internal characters in mineralized arthropods from the Paleogene, urging the reexamination of previously neglected fossil collections.
    1. Evolutionary Biology
    2. Plant Biology

    Paleobotany: Did flowering plants exist in the Jurassic period?

    David Winship Taylor, Hongqi Li
    The discovery of a fossil that might be the oldest flowering plant will continue the debate on the origin and structure of ancestral flowering plants.
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    1. Ecology
    2. Evolutionary Biology

    Extreme adaptations for aquatic ectoparasitism in a Jurassic fly larva

    Jun Chen et al.
    Well-preserved fossils reveal an extreme morphological specialization of fly larvae, and broaden our understanding of the diversity of ectoparasitism in Mesozoic insects.
    1. Ecology
    2. Evolutionary Biology

    Heart fossilization is possible and informs the evolution of cardiac outflow tract in vertebrates

    Lara Maldanis et al.
    The discovery of a fossil heart in Rhacolepis buccalis demonstrates that it is possible to scrutinize the fossil record for important clues on cardiac structure and evolution.
    1. Evolutionary Biology

    New fossil remains of Homo naledi from the Lesedi Chamber, South Africa

    John Hawks et al.
    The discovery of new skeletal remains of Homo naledi in the Lesedi Chamber, South Africa, adds more evidence to our understanding of the morphology and behavior of this recently discovered species.
    1. Evolutionary Biology

    Oldest skeleton of a fossil flying squirrel casts new light on the phylogeny of the group

    Isaac Casanovas-Vilar et al.
    Flying squirrels may have originated earlier than previously thought and remained unchanged for almost 12 million years.
    1. Structural Biology and Molecular Biophysics

    Dynamic action of the Sec machinery during initiation, protein translocation and termination

    Tomas Fessl et al.
    The complex process of protein translocation across membranes has been dissected into multiple key steps and the distributions of translocation rates indicate stochastic nature of the reaction.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Memory CD4 T cell subsets are kinetically heterogeneous and replenished from naive T cells at high levels

    Graeme Gossel et al.
    The maintenance of memory CD4 T cells in mice relies on a continual and strikingly high level of replenishment from naive precursors, and older memory T cells may resist the influx of newer ones.
    1. Ecology
    2. Evolutionary Biology

    Palaeobiology: Unearthing the secrets of ancient immature insects

    Enrique Peñalver, Ricardo Pérez-de la Fuente
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