News

  1. Anthropology

    Human fossils are oldest yet

    Homo sapiens fossils found along Ethiopia's Omo River in 1967 date to 195,000 years ago, making them the oldest-known remains of our species.

    By Bruce Bower
  2. Health & Medicine

    Healing Gone Haywire: Wound-repair genes signal cancer spread

    An experimental test predicts which breast tumors will spread rapidly without treatment and which are likely to be less aggressive by tracking the activity of genes normally involved in mending injured tissue.

    By David Shiga
  3. Animals

    Hour of Babble: Young birds sing badly in the morning

    Young zebra finches do badly at song practice for the first few hours after they wake up but then recover, and even improve, their musical skills.