News

  1. Humans

    Oceans set stage for human evolution

    Temperature changes off the coast dried out East Africa and allowed grasslands to spread starting around 2 million years ago.

    By Alexandra Witze
  2. Humans

    Harsh conditions in childhood have long-term effects

    Kids from Romanian orphanage also had lower volumes of gray matter.

    By Laura Sanders
  3. Genetics

    Crosses make lab mice even more useful

    Scientists have bred new strains of lab animals with the goal of making it easier to tease out genetic components of complex diseases.

    By Tina Hesman Saey
  4. Health & Medicine

    Osteoporosis drugs delivered wirelessly

    Implanted microchip that releases medications on command has been tested in people for the first time.