News

  1. Paleontology

    Digging the Scene: Dinos burrowed, built dens

    Dinosaurs remains fossilized within an ancient burrow are the first indisputable evidence that some dinosaurs maintained an underground lifestyle.

    By Sid Perkins
  2. Health & Medicine

    HIV-positive people getting heavier

    With drug treatment, HIV-infected people no longer suffer from wasting but are about as overweight or obese as the U.S. population as a whole.

    By Brian Vastag
  3. Health & Medicine

    ‘Knuckle fever’ reaches Italy

    A virus that causes debilitating fever and joint pain has spread from Africa to Italy, where it has caused at least 284 cases of illness.

    By Brian Vastag
  4. Health & Medicine

    Twice bitten

    Repeat episodes of Lyme disease are more likely caused by a second tick bite rather than by a return of the original illness.