News

  1. Animals

    Platypus fur has a surprising feature seen only in bird feathers

    Platypuses are the first mammals known to have hollow melanosomes, pigment-bearing structures found in the hair of many animals.

    By Jude Coleman
  2. Climate

    City skylines influence cloud formation above them

    Satellite data show that U.S. cities have more nighttime cloud cover than nearby countryside, and building height and density help explain why.

    By Larissa G. Capella
  3. Health & Medicine

    Smartwatch data can be used to assess early diabetes risk

    When combined with clinical markers, smartwatch data was able to help detect insulin resistance with nearly 90 percent accuracy.

    By Elie Dolgin
  4. Climate

    Extreme heat is cutting the time people can safely be active outdoors

    Heat and humidity now severely limit light physical activity for millions of people around the world, with older adults facing the greatest burden.