Uncategorized

  1. Earth

    Earth’s stratosphere is a mysterious superhighway for microbes

    Well-known microbes that grow on our crops, our gardens, even our skin have been found thriving at two to three times the flying height of a commercial jetliner.

    By Douglas Fox
  2. 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
  3. 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
  4. 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.