News

  1. Life

    Chill turns monarchs north

    Temperature manipulation appears to solve mystery of what triggers migratory butterflies’ homeward trip.

    By Meghan Rosen
  2. Health & Medicine

    Surgery shows promise in treating persistent heartburn

    Ring-shaped device around esophagus prevents acid reflux so that patients can stop taking drugs.

    By Nathan Seppa
  3. Tech

    Imaging technique offers look inside hearing loss

    Two-photon microscopy visualizes hair cells in the inner ear, offering insights into processes leading to deafness.

    By Rachel Ehrenberg
  4. Humans

    Origins of alcohol consumption traced to ape ancestor

    Eating fermented fruit off the ground may have paved way for ability to digest ethanol.

    By Erin Wayman
  5. Earth

    Blood levels of BPA become source of controversy

    New data question whether human blood measurements of BPA reflect sample contamination or just exaggerated exposures.