News

  1. Animals

    Seeing humans as superpredators

    People have become a unique predator, hunting mostly adults of other species.

    By Susan Milius
  2. Genetics

    Gene thought to cause obesity works indirectly

    Researchers have discovered a “genetic switch” that determines whether people will burn extra calories or save them as fat.

    By Tina Hesman Saey
  3. Health & Medicine

    Stiff cellular environment links obesity to breast cancer

    Obesity may directly support tumor growth by making a cell’s surroundings stiffer.

    By Sarah Schwartz
  4. Animals

    Hummingbird tongues may work like micropumps

    Hummingbird tongues work as elastic micropumps instead of simple thin tubes, researchers say in latest round of a scientific debate.