News

  1. Animals

    Jay Watch: Birds get sneakier when spies lurk

    A scrub jay storing food takes note of any other jay that watches it and later defends the hoard accordingly.

    By Susan Milius
  2. Anthropology

    Hybrid-Driven Evolution: Genomes show complexity of human-chimp split

    A controversial new genetic comparison suggests that human and chimpanzee ancestors interbred for several million years before evolving into reproductively separate species no more than 6.3 million years ago.

    By Bruce Bower
  3. Materials Science

    Feeling cagey

    Researchers have discovered that gold can take the shape of nanoscale, hollow cages.

    By Aimee Cunningham
  4. Astronomy

    Safe from a Heavenly Doom: Gamma-ray bursts not a threat to Earth

    Gamma-ray bursts are likely to occur in the Milky Way.