18 results found
    1. Evolutionary Biology
    2. Genetics and Genomics

    Brain Size: Gene losses did not stop the evolution of big brains

    Cristian Cañestro, Vittoria Roncalli
    Elephants and fruit bats have evolved large brains even though they have lost a gene that is fundamental to the supply of energy to the brain when glucose is not available.
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    1. Physics of Living Systems

    Animal Behavior: Whale breaching says it loud and clear

    Alexander J Werth, Charles L Lemon
    A whale leaping above the surface expends an enormous amount of energy, displaying its health and strength to peers and potential mates.
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    1. Ecology

    Vessel noise levels drive behavioural responses of humpback whales with implications for whale-watching

    Kate R Sprogis et al.
    Controlled exposure experiments reveal that underwater vessel noise level from a motorised vessel is an adequate driver of behavioural disturbance in humpback whales.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Recurrent loss of HMGCS2 shows that ketogenesis is not essential for the evolution of large mammalian brains

    David Jebb, Michael Hiller
    The evolutionary loss of the main enzyme required for ketone body biosynthesis suggests that alternative strategies to provide energy for large brains during fasting evolved repeatedly in mammals.
    1. Physics of Living Systems

    Energetic and physical limitations on the breaching performance of large whales

    Paolo S Segre et al.
    Muscle power-generating capabilities, and not energetic limitations, limit the breaching abilities of the largest whales.
    1. Evolutionary Biology

    Behavioural diversity of bonobo prey preference as a potential cultural trait

    Liran Samuni et al.
    Bonobo groups that share overlapping ranging areas and engage in regular social exchange show "behavioural group identity" of hunting techniques in the absence of local ecological variation.
    1. Developmental Biology
    2. Evolutionary Biology

    Secondary ossification center induces and protects growth plate structure

    Meng Xie et al.
    The principle underlying the appearance of the growth plate, an organ responsible for longitudinal growth, has implications for various cartilage pathologies including growth abnormalities in children, trauma and osteoarthritis.
    1. Computational and Systems Biology
    2. Neuroscience

    Regulation of sleep homeostasis by sexual arousal

    Esteban J Beckwith et al.
    Sexual arousal, exposure to aphrodisiac pheromones, or mere activation of peripheral pheromone-sensing neurons can modulate sleep homeostasis and are able to counteract the effects of sleep deprivation in Drosophila.
    1. Cell Biology
    2. Neuroscience

    Genetic defects in β-spectrin and tau sensitize C. elegans axons to movement-induced damage via torque-tension coupling

    Michael Krieg et al.
    A conceptual framework and physical model shows how actin-spectrin networks and microtubule bundles can protect axons from mechanical stress.
    1. Cell Biology
    2. Evolutionary Biology

    TP53 copy number expansion is associated with the evolution of increased body size and an enhanced DNA damage response in elephants

    Michael Sulak et al.
    Elephants escaped enhanced cancer susceptibility by evolving more master tumor suppressor genes.

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