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  1. Humans

    From the June 20, 1936, issue

    A lightning portrait, the effects of cosmic rays, and helium to prevent the bends.

    By Science News
  2. 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
  3. 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
  4. Earth

    Toxic Leftovers: Microbes convert flame retardant

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