News

  1. Earth

    Mexican silver made it into English coins

    Chemical tests of currency help reveal where New World riches flowed.

    By Alexandra Witze
  2. Psychology

    Word-detecting baboons are a tough read

    New models offer contrasting views of monkeys’ ability to identify frequently seen letter pairs.

    By Bruce Bower
  3. Tech

    Printed robot moves with a beat

    Tiny device created with a 3-D printer employs heart cells to make it move.

    By Rachel Ehrenberg
  4. Earth

    Gulf spill harmed small fish, studies indicate

    Effects vary but dire impacts seen with some very low exposures.

    By Janet Raloff
  5. Health & Medicine

    Protein’s destructive journey in brain may cause Parkinson’s

    Clumps of alpha-synuclein move through dopamine-producing cells, mouse study finds.