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  1. Earth

    Fossil fangs not so fierce

    Cambrian predator might have eaten soft food.

    By Alexandra Witze
  2. Life

    Will groom for snuggles

    Sooty mangabey and vervet monkey mothers charge a price, dictated by market forces, that other females must pay to touch their babies.

    By Susan Milius

  3. Book Review: The Many Worlds of Hugh Everett III: Multiple Universes, Mutual Assured Destruction, and the Meltdown of a Nuclear Family by Peter Byrne

    Review by Tom Siegfried.

    By Science News
  4. Psychology

    Aboriginal time runs east to west

    Some indigenous Australians envision time moving westward, suggesting that culture shapes how people think about this basic concept.