News

  1. Health & Medicine

    Team locates anthrax-receptor protein

    Scientists have identified the protein that enables the anthrax toxin to attach to cells and trigger disease, while another team has mapped the molecular structure of the toxin component that does most of the damage to cells.

    By Nathan Seppa
  2. Paleontology

    Fossils Indicate. . .Wow, What a Croc!

    Newly discovered fossils of an ancient cousin of modern crocodiles suggest that adults of the species may have been dinosaur-munching behemoths that grew to the length of a school bus and weighed as much as 8 metric tons.

    By Sid Perkins
  3. Tech

    Brain cells stay in focus as rats roam

    So light that it doesn't weigh down a rat's head, a new microscope mounted over a hole in the awake animal's skull promises to open a window into individual neurons as a rat carries out normal activities.