News

  1. Paleontology

    Fossil whale skull hints at echolocation’s origins

    Ancestors of toothed whales used echolocation as early as 34 million years ago, analysis of a new fossil skull suggests.

    By Ashley Yeager
  2. Neuroscience

    Brain chemicals help worms live long and prosper

    Serotonin and dopamine accompany long lives in C. elegans worms under caloric restriction.

    By Laura Sanders
  3. Life

    Acid-bath method for making stem cells under fire

    No one has been able to reproduce a new technique for creating stem cells called STAP cells, leading some researchers to call for the retraction of the original research papers.

    By Tina Hesman Saey
  4. Animals

    Elephants can tell men’s voices from women’s

    Amboseli elephants may pick out age and gender — and even distinguish between languages — when listening to human voices.