Uncategorized

  1. Anthropology

    Hominids used stone tool kits to butcher animals earlier than once thought

    Finds in Kenya push Oldowan tool use back to around 2.9 million years ago, roughly 300,000 years earlier than previous evidence.

    By Bruce Bower
  2. Life

    Orca moms baby their adult sons. That favoritism pays off — eventually

    By sharing fish with their adult sons, orca moms may skimp on nutrition, cutting their chances of more offspring but boosting the odds for grandwhales.

    By Susan Milius
  3. Health & Medicine

    How fingerprints form was a mystery — until now

    A theory proposed by British mathematician Alan Turing in the 1950s helps explain how fingerprint patterns such as arches and whorls arise.