News

  1. Genetics

    Dogs’ origins lie in Europe

    First domesticated canines did not live in China or Middle East, a study of mitochondrial DNA finds.

    By Tina Hesman Saey
  2. Physics

    Single photon detected but not destroyed

    Researchers build first instrument that can witness the passage of a light particle without absorbing it.

    By Andrew Grant
  3. Health & Medicine

    Prion mutation yields disease marked by diarrhea

    Rare prion ailment starts in adulthood, attacking the gut before brain.

    By Nathan Seppa
  4. Humans

    Bigger numbers, not better brains, smarten human cultures

    An experiment using a computer game supports the idea that big populations drove the evolution of complex human cultures.