Uncategorized

  1. Humans

    From the August 23, 1930, issue

    alt=”Click to view larger image”> STRICTLY AMERICAN Indian architects and sculptors of the American tropics in prehistoric times had strikingly original ideas. On the cover you see the entrance to the beautiful Temple of the Warriors at Chichen Itza, in Yucatan. The Toltecs, who conquered the Mayas at Chichen Itza, remained in the city and […]

    By Science News
  2. Animals

    Vampire bats don’t learn from bad lunch

    For the first time, a mammal has flunked a controlled test for developing a food aversion after getting sick just once, and that unusual creature is the common vampire bat.

    By Susan Milius
  3. Health & Medicine

    Protective virus ties up HIV docking sites

    A harmless virus that seems to keep HIV infections from progressing to AIDS appears to do so by occupying key molecular receptors on immune cells.