26 results found
    1. Ecology

    Oxygen isotopes suggest elevated thermometabolism within multiple Permo-Triassic therapsid clades

    Kévin Rey et al.
    Two therapsid clades, dicynodonts and cynodonts, independently acquired and developed an endotherm-like thermoregulation during the Late Permian period, that probably helped them to survive the major global climate and environmental fluctuations of the end-Permian.
    1. Ecology

    No general relationship between mass and temperature in endothermic species

    Kristina Riemer et al.
    Data analysis of a large number of species indicates that a negative temperature-mass relationship is not common among species, which has been an ecological assumption for over a century.
    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. 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. Neuroscience

    Thermoregulation: How a brain keeps its cool

    Swathi Yadlapalli, Orie T Shafer
    Temperature-sensing neurons in the Drosophila brain cooperate with the central circadian clock to help regulate body temperature.
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    1. Neuroscience

    Two central pattern generators from the crab, Cancer borealis, respond robustly and differentially to extreme extracellular pH

    Jessica A Haley et al.
    The rhythms generated by the stomatogastric and cardiac ganglia of the Jonah crab are surprisingly robust but differentially sensitive to acute changes in extracellular pH from pH 5.5 to 10.4.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Distinct RanBP1 nuclear export and cargo dissociation mechanisms between fungi and animals

    Yuling Li et al.
    Animal RanBP1 nuclear export and cargo dissociation mechanisms are surprisingly different from yeast, due to mutations of critical residues, leading to greater nuclear transport efficiency and higher energy cost.
    1. Evolutionary Biology

    Convergent changes in muscle metabolism depend on duration of high-altitude ancestry across Andean waterfowl

    Neal J Dawson et al.
    Changes in pathways of lipid oxidation, glycolysis, and mitochondrial oxidative phosphorylation are common strategies to cope with high-altitude hypoxia, but some changes require longer evolutionary time to arise.
    1. Evolutionary Biology

    Retinal oxygen supply shaped the functional evolution of the vertebrate eye

    Christian Damsgaard et al.
    Multiple respiratory and vascular mechanisms have recurrently evolved across the vertebrates to alleviate the oxygen diffusion limitations inherent to the morphology of the retina.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Myosin III-mediated cross-linking and stimulation of actin bundling activity of Espin

    Haiyang Liu et al.
    The tail domain of Myosin III binds to and cross-links actin bundling protein Espin1 and thus modulates higher order actin bundle structures in cellular processes such as stereocilia and microvilli.

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