Life

  1. Paleontology

    Ancient burrows

    Triassic-era sediments unearthed in Antarctica reveal the well-preserved lair of a four-legged, mammal-like reptile.

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  2. Paleontology

    A mammoth divide

    Woolly mammoths roamed Siberia in two distinct clans, and the split between the groups, scientists say, is surprisingly deep, occurring more than 1 million years ago.

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  3. Life

    Simple body, complex blueprints

    Genes key to the development of modern animals' body plans show up in primitive-looking comb jellies.

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  4. Health & Medicine

    Wake up and smell the java

    The smell of coffee leads to changes in gene activity in sleep-deprived rats, hinting at the molecular basis for the relaxing effect of the aroma seen in experiments.

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  5. Health & Medicine

    Nabbing suspicious SNPs

    Scientists search the whole genome for clues to common diseases.

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  6. Life

    A better look

    A new 3-D microscopy technique offers unprecedented views of cells.

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  7. Life

    BOOK REVIEW | Amazon Expeditions: My Quest for the Ice-Age Equator

    Review by Elizabeth Quill.

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  8. Animals

    BOOK LIST | Nim Chimpsky: The Chimp Who Would Be Human

    The story of a chimp being raised by humans —and washing the dishes (p.130). NIM CHIMPSKY: THE CHIMP WHO WOULD BE HUMAN Bantam Books, 2008, 269 p., $23.

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  9. Health & Medicine

    Tame-walk potion

    A one-two sting and a cockroach lets a wasp lead it like a dog on a leash.

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  10. Chemistry

    Life before proteins

    Spheres of fat suggest a way that life on Earth could have gotten started.

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  11. Life

    Zombie babysitters

    Wasp attack creates undead caterpillars that protect wasp young

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  12. Life

    Replaying evolution

    By watching bacteria evolve in the lab for 20 years, researchers show that evolution may be rather capricious.

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