3,070 results found
    1. Evolutionary Biology

    New footprints from Laetoli (Tanzania) provide evidence for marked body size variation in early hominins

    Fidelis T Masao et al.
    Bipedal footprints made 3.66 million years ago provide the clearest available evidence to date of the occurrence of marked body size variation in Australopithecus afarensis..
    1. Genetics and Genomics

    Firefly genomes illuminate parallel origins of bioluminescence in beetles

    Timothy R Fallon et al.
    The first genomic view of beetle luciferase evolution indicates evolutionary independence of luciferase between fireflies and click-beetles, and provide valuable datasets which will accelerate the discovery of new biotechnological tools.
    1. Ecology

    Relative demographic susceptibility does not explain the extinction chronology of Sahul’s megafauna

    Corey JA Bradshaw et al.
    There is no relationship between the demographic susceptibility to extinction and the estimated extinction chronology among Sahul’s megafauna, suggesting that human choices, a species’ ecological requirements, and/or random climate variation instead determined the extinction chronology.
    1. Physics of Living Systems

    Decoding the physical principles of two-component biomolecular phase separation

    Yaojun Zhang et al.
    Phase separation of two-component multivalent systems is suppressed at rational polymer stoichiometries, suggesting possible cellular strategies for regulating the formation and function of biomolecular condensates.
    1. Evolutionary Biology

    Computed tomography shows high fracture prevalence among physically active forager-horticulturalists with high fertility

    Jonathan Stieglitz et al.
    High reproductive effort constrains bone tissue response to physical activity-induced mechanical loading.
    1. Evolutionary Biology
    2. Neuroscience

    Quantitative uniqueness of human brain evolution revealed through phylogenetic comparative analysis

    Ian F Miller et al.
    The exceptionally large size of the human brain is the result of accelerating evolution towards larger brains in hominins, but is not the product of neocortical expansion.
    1. Physics of Living Systems

    Somatosensory neurons integrate the geometry of skin deformation and mechanotransduction channels to shape touch sensing

    Alessandro Sanzeni et al.
    Nonlinear elasticity of skin tissues and somatosensory neural responses are combined to predict and test C. elegans processing of touch stimuli and modifications due to changes in the body mechanics.
    1. Genetics and Genomics
    2. Medicine

    Effects of lifelong testosterone exposure on health and disease using Mendelian randomization

    Pedrum Mohammadi-Shemirani et al.
    Long-term increased testosterone improved body composition and bone density, but lowered HDL and raised risks of hypertension, androgenic alopecia, prostate cancer, and spinal stenosis in males.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Genome streamlining in a minute herbivore that manipulates its host plant

    Robert Greenhalgh et al.
    The genome of a tiny tomato pest reveals mechanisms that underlie metazoan genome reduction.
    1. Ecology
    2. Evolutionary Biology

    Sexual dimorphism in trait variability and its eco-evolutionary and statistical implications

    Susanne RK Zajitschek et al.
    Sex differences in trait variability imply that both sexes should be included in biomedical trials, using sex-specific statistical power calculations.

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