News

  1. Animals

    Deepwater dweller is first known warm-hearted fish

    The opah, a deep-diving fish, can keep much of its body warmer than its surroundings, making it similar to warm-blooded birds and mammals.

    By Susan Milius
  2. Oceans

    Mysterious form of phosphorus explained

    Mysterious form of phosphorus may be used as shadow currency by marine microbes, potentially upending scientists’ understanding of nutrient exchanges.

    By Beth Mole
  3. Neuroscience

    Fruit flies flee from shadows

    Studying flies’ responses to an ominous shadow may lead to a deeper understanding of humans’ emotions.

    By Laura Sanders
  4. Genetics

    MicroRNAs track radiation doses

    MicroRNAs in the blood may indicate radiation damage, a study of mice finds.