Uncategorized

  1. Life

    Sparkly exoskeletons may help camouflage beetles from predators

    Iridescence, normally thought to help insects stand out, can also camouflage beetles from predators, according to new experimental evidence.

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  2. Archaeology

    Mount Vesuvius may have suffocated, not vaporized, some victims

    A new study suggests people living near Pompeii who hid in stone boathouses died a slower death when the volcano erupted in A.D. 79.

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  3. Humans

    Stress turns hair gray by triggering the body’s fight-or-flight response

    A study in mice finds stress responses deplete cells that give hair its pigment, making the strand white.

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  4. Earth

    Fed by human-caused erosion, many river deltas are growing

    Deforestation and river damming are changing the shape of river deltas around the globe.