Uncategorized

  1. Ecosystems

    Beavers are engineering a new Alaskan tundra

    Climate change has enabled the recent expansion of beavers into northwestern Alaska, a trend that could have major ecological consequences for the region in the coming decades.

    By Sid Perkins
  2. Genetics

    Chinese scientists raise ethical questions with first gene-edited babies

    Scientists say gene editing of human embryos isn’t yet safe, and creating babies was unethical.

    By Tina Hesman Saey
  3. Animals

    Mosquitoes may surf winds above Africa more than we realized

    More than 40 meters up, balloon traps in Mali caught females of malaria-spreading mosquito species.

    By Susan Milius
  4. Earth

    A new algorithm could help protect planes from damaging volcanic ash

    A computer program that tracks the temperature and height of clouds in the atmosphere could keep planes away from volcanic ash.