News

  1. Genetics

    Some identical twins don’t have identical DNA

    Mutations arising early in development may account for genetic differences between identical twins.

    By Tina Hesman Saey
  2. Anthropology

    Ice Age hunters’ leftovers may have fueled dog domestication

    Ancient people tamed wolves by feeding them surplus game, researchers suggest.

    By Bruce Bower
  3. Health & Medicine

    Severe allergic reactions to COVID-19 vaccines are extremely rare, CDC says

    Out of the first 1.9 million doses of Pfizer’s COVID-19 vaccine given in the United States, there were 21 reported cases of anaphylaxis, a CDC study finds.

    By Aimee Cunningham
  4. Genetics

    Plague may have caused die-offs of ancient Siberians

    DNA suggests that the deadly bacterium that causes the plague reached northeast Asia by 4,400 years ago.