News

  1. Paleontology

    Monkeys reached Americas about 36 million years ago

    Peruvian fossils suggest ancient African primates somehow crossed the Atlantic Ocean and gave rise to South American monkeys.

    By Bruce Bower
  2. Earth

    Geologists discover tectonic plate’s slippery underbelly

    Slippery layer of partially melted rock underneath tectonic plate revealed using reflected dynamite blast vibrations.

    By Thomas Sumner
  3. Animals

    Cockroach personalities can speed or slow group decisions

    The mix of temperaments in an alarmed cluster of cockroaches changes how quickly they make group decisions.

    By Susan Milius
  4. Humans

    Baby brains undergo dramatic changes in utero

    Developing human brains experience more than 28,000 changes in a molecular process that governs gene activity.