News

  1. Animals

    Wild elephants clock shortest shut-eye recorded for mammals

    Among mammals, wild elephants may need the least amount of sleep, new measurements suggest.

    By Susan Milius
  2. Paleontology

    Oldest microfossils suggest life thrived on Earth about 4 billion years ago

    A new claim for the oldest microfossils on Earth suggests that life may have originated in hydrothermal vents, but some scientists have doubts.

    By Meghan Rosen
  3. Health & Medicine

    DNA may offer rapid road to Zika vaccine

    Researchers are pursuing multiple vaccine strategies for blocking Zika infection.

    By Meghan Rosen
  4. Life

    Bacteria genes offer new strategy for sterilizing mosquitoes

    Two genes in Wolbachia bacteria could be used to sterilize mosquitoes that transmit Zika.