News

  1. Neuroscience

    Sleep allows brain to wash out junk

    Discovery of fluids flowing in mice while they slumber could lead to better treatments for Alzheimer’s disease.

    By Tina Hesman Saey
  2. Anthropology

    Fossil skull points to single root for human evolution

    New find suggests that humankind’s origins trace to an ancient species that spread from Africa to Asia.

    By Bruce Bower
  3. Health & Medicine

    Hopes raised for Ebola treatment

    Most monkeys given dual therapy survive infection with lethal virus.

    By Nathan Seppa
  4. Animals

    Lurking males lead to hard-to-fertilize mouse eggs

    Mixed-sex society raises resistance to sperm in what may be a long-running arms race between the sexes over fertilization.