Uncategorized

  1. Paleontology

    Ancient microbe fossils show earliest evidence of shell making

    Armor-plated, 809-million-year-old fossilized microbes discovered in Canada are the oldest known evidence of shell making.

    By Thomas Sumner
  2. Astronomy

    Solar system sits within major spiral arm of Milky Way

    The solar system appears to live in one of the major spiral arms of the Milky Way, not in an offshoot as previously thought.

    By Christopher Crockett
  3. Animals

    New case emerging for Culex mosquito as unexpected Zika spreader

    The much-debated proposal that a Culex mosquito could help spread Zika gets some international support.

    By Susan Milius
  4. Animals

    Barnacles track whale migration

    The mix of oxygen isotopes in the shells of barnacles that latch on to baleen whales may divulge how whale migration routes have changed over millions of years.