News

  1. Humans

    Babies perk up to sounds of ancient hazards

    Evolution has primed infants to focus on noises linked to longstanding dangers, a new study finds.

    By Bruce Bower
  2. Life

    Many genes in dolphins and bats evolved in the same way to allow echolocation

    Widespread changes scattered across the genomes of distantly related species cooperated to craft the trait.

    By Jessica Shugart
  3. Health & Medicine

    Device offers promise of no brain tumor left behind

    A new technique might allow surgeons to identify with precision where brain cancer ends and healthy tissue begins.

    By Nathan Seppa
  4. Health & Medicine

    Gut infections keep mice lean

    Bacteria can invade one rodent from another, preventing both from getting fat.