Uncategorized

  1. Humans

    Visible Proofs

    This dramatic Web site from the U.S. National Library of Medicine unveils the world of forensic medicine, anthropology, technology, and history. The site includes information on significant cases, various technologies, and other topics. It also has three online activities and three lesson plans. Go to: http://www.nlm.nih.gov/visibleproofs/index.html

    By Science News
  2. Paleontology

    Sticky Subjects: Insights into ancient spider diet, kinship

    Remnants of a spider web embedded in ancient amber suggest that some spiders' diets haven't changed much in millions of years.

    By Sid Perkins
  3. Earth

    Toxic Leftovers: Microbes convert flame retardant

    Bacteria can break down a common flame retardant into more-toxic forms.

    By Aimee Cunningham

  4. Older but Mellower: Aging brain shifts gears to emotional advantage

    The aging brain reorganizes in ways that foster emotional stability and a tendency to favor positive emotions over negative ones.