Uncategorized

  1. Life

    How the snake got its fangs

    A study of snake embryos suggests that fangs evolved once, then moved around in the head to give today’s snakes a variety of bites.

    By Amy Maxmen
  2. Health & Medicine

    Calcium’s possible role in Alzheimer’s

    A new study in mice finds that plaques associated with Alzheimer’s wreak havoc on calcium’s role in cell signaling.

    By Patrick Barry
  3. Paleontology

    Soft tissue in fossils still mysterious

    New research suggests modern biofilms could contaminate ancient fossils.

    By Sid Perkins
  4. Health & Medicine

    To catch a cheat

    Drug test cheaters find quick fixes on the Web, but toxicologists aren’t so easily fooled.