News

  1. Life

    Hightailing it out of the water, mudskipper style

    A robot and a land-walking fish show how a tail might have made a huge difference for early vertebrates conquering the slippery slopes of terrestrial life.

    By Susan Milius
  2. Tech

    Light-activated heart cells help guide robotic stingray

    Layers of silicone, gold and genetically engineered rat heart cells make up the body of a new stingray robot that can swim in response to light.

    By Meghan Rosen
  3. Life

    Donor mitochondria could influence metabolism, aging

    Mitochondrial DNA donation could have unexpected long-term health consequences for “three-parent babies.”

    By Amy McDermott
  4. Anthropology

    New dating suggests younger age for Homo naledi

    South African fossil species lived more recently than first thought, study suggests.