Humans

  1. Health & Medicine

    What the appendix is good for

    Some body parts seem pointless but in fact have purpose.

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  2. Health & Medicine

    Making light of sleep

    Teens are prone to sleep problems, but a little sunshine could help.

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  3. Health & Medicine

    Physics of running bared

    Running without shoes softens the blow.

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  4. Health & Medicine

    Slumber by the numbers

    Fewer than 1 in 10 teens get ideal amount of sleep.

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  5. Health & Medicine

    Got milk? How?

    Scientists are tracking down the first people who squeezed this nutritious liquid out of animals thousands of years ago.

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  6. Health & Medicine

    Drugs and zzzzzz’s

    People who take the drug ecstasy are more likely to suffer from a sleeping disorder.

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  7. Health & Medicine

    The (kids’) eyes have it

    A visual trick opens a window on brain development.

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  8. Health & Medicine

    New twists for phantom limbs

    An experiment explores the connections between brain and body.

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  9. Health & Medicine

    Junk food junkies

    Rats on a junk food diet behave like drug addicts.

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  10. Health & Medicine

    The taste of bubbles

    Taste cell for sourness senses fizz, too.

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  11. Humans

    Meet your mysterious relative

    Ardi climbed trees and walked on two legs 4.4 million years ago.

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  12. Genetics

    Two monkeys see a more colorful world

    A genetic experiment changes the way monkeys see the world.

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