News

  1. Health & Medicine

    Sleep and exercise may dampen genetic drivers of heart disease

    Over time, immune cells acquire mutations that promote atherosclerosis. Lifestyle changes may offset these DNA glitches, new mouse data suggest.

    By Esther Landhuis
  2. Health & Medicine

    Engineered hookworms could one day dispense drugs from inside your gut

    In a first, researchers genetically modified hookworms. It’s a step toward turning the parasites into living pharmacies.

    By Tina Hesman Saey
  3. Paleontology

    Frozen squirrel poop hints at sights and smells of Ice Age ecosystems

    DNA preserved in ancient scat reveals what Yukon ground squirrels ate and what animals shared their world.

    By Bethany Brookshire
  4. Animals

    These birds clack their wing bones together to woo mates at night

    During courtship, male scissor-tailed nightjars crack their wings together to make a sharp snapping sound.