News

  1. Humans

    Stone tools may place some of the first Americans in Idaho 16,500 years ago

    Newly discovered stone artifacts support the idea that North America’s first settlers traveled down the Pacific coast and then turned eastward.

    By
  2. Genetics

    There’s no evidence that a single ‘gay gene’ exists

    Many genetic factors with small effects combine with one’s environment to influence sexual behavior, researchers say.

    By
  3. Neuroscience

    Clumps of cells in the lab spontaneously formed brain waves

    Nerve cells fired coordinated signals in brain organoids, 3-D clusters of cells that mimic some aspects of early brain development.

    By
  4. Humans

    A 3.8-million-year-old