News

  1. Paleontology

    Fossils Hint at Who Left Africa First

    Fossil skulls found in central Asia date to 1.7 million years ago and may represent the first ancestral human species to have left Africa.

    By Bruce Bower
  2. Animals

    Upside Way Down: Video turns fish story on its head

    The first video of whipnose anglerfish reveals them swimming upside down and trolling for prey on the 5,000-meter deep ocean floor.

    By Carol Marzuola
  3. Health & Medicine

    Blood Booster: Growth signal shifts cord stem cells into high gear

    A protein called Delta-1 stimulates stem cells in umbilical cord blood to proliferate in a lab dish, attach well to bone marrow when implanted into mice, and even proceed to the animal's thymus to become T cells.