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  1. Life

    Monkey moms and babies communicate from the start

    Macaque mothers and infants engage in emotional interactions similar to those of human moms and their babies, a new study suggests.

    By Bruce Bower
  2. Health & Medicine

    Retrovirus might be culprit in chronic fatigue syndrome

    An obscure pathogen shows up often in people diagnosed with the condition, scientists find.

    By Nathan Seppa
  3. Chemistry

    Nobel Prize in chemistry commends finding and use of green fluorescent protein

    One researcher is awarded for discovering the protein that helps jellyfish glow and two for making the protein into a crucial tool for biologists.

    By Tina Hesman Saey
  4. Health & Medicine

    Pigs use mirrors

    After some time to play around with a mirror, pigs figure out what to do when they glimpse a reflection of food.