News

  1. Paleontology

    Ancient whale tells tale of when baleen whales had teeth

    A 36 million-year-old whale fossil bridges the gap between ancient toothy predators and modern filter-feeding baleen whales.

    By Laurel Hamers
  2. Health & Medicine

    ‘Exercise pill’ turns couch potato mice into marathoners

    An experimental "exercise in a pill" increases running endurance in mice before they step foot on a treadmill.

    By Laura Beil
  3. Health & Medicine

    New rules for cellular entry may aid antibiotic development

    A new study lays out several rules to successfully enter gram-negative bacteria, which could lead to the development of sorely needed antibiotics.

    By Aimee Cunningham
  4. Animals

    Seabirds use preening to decide how to divvy up parenting duties

    Seabirds in poor condition may communicate this information to their partner by delaying or withholding preening.