News

  1. Humans

    Group size affects racial makeup of friend groups

    Larger settings seem to promote segregation, simulation finds.

    By Rachel Ehrenberg
  2. Humans

    Ardi’s kind had a skull fit for a hominid

    Study of reconstructed skull section puts 4.4-million-year-old species in human evolutionary family.

    By Bruce Bower
  3. Earth

    Puny plastic particles mar Lake Erie’s waters

    Polymer particles in the lake carry pollutants.

    By Rachel Ehrenberg
  4. Life

    New flu in China reveals its avian origins

    H7N9 influenza genes came from three bird viruses.

    By Tina Hesman Saey
  5. Health & Medicine

    Mental puzzles underlie music’s delight

    MRI reveals brain’s processing, and its pleasure, when a person listens to an enjoyable new tune.