Uncategorized

  1. Humans

    Humans’ maternal ancestors may have arisen 200,000 years ago in southern Africa

    New DNA findings on humankind’s maternal roots don’t offer a complete picture of how and when Homo sapiens emerged.

    By Bruce Bower
  2. Life

    Bird eggs laid in cold climates are darker, which may keep eggs warm

    A global survey of bird egg color reveals a simple trend: the colder the climate, the darker the egg.

    By Jonathan Lambert
  3. Space

    The solar system may have a new smallest dwarf planet: Hygiea

    New images reveal Hygiea is round, a final criterion for promoting the wee world from asteroid to dwarf planet status.

    By Maria Temming
  4. Humans

    Dating questions challenge whether Neandertals drew Spanish cave art

    A method used to date cave paintings in Spain may have overestimated the art’s age by thousands of years, putting its creation after Neandertal times.