News in Brief

  1. Neuroscience

    Protein helps old blood age the brains of young mice

    Increased levels of one protein in old blood may contribute to its aging effects on the brain, a mouse study suggests.

    By Laura Sanders
  2. Genetics

    CRISPR gene editor could spark immune reaction in people

    Immune reactions could shut down CRISPR/Cas9 gene editing.

    By Tina Hesman Saey
  3. Climate

    Warming ocean water is turning 99 percent of these sea turtles female

    Green sea turtle populations in part of the Great Barrier Reef are becoming increasingly female due to higher ocean temperatures.

    By Laurel Hamers
  4. Oceans

    Corals are severely bleaching five times as often as in 1980

    Corals are now bleaching more frequently and severely than they were in the early 1980s.