Uncategorized

  1. Humans

    Rare animals get U.N. protection

    Several types of whales, river dolphins, the great white shark, and an unusual camel are among animals designated to receive new or heightened protection under a United Nations treaty.

    By Janet Raloff
  2. Health & Medicine

    Making the optic nerve sprout anew

    A compound made during inflammation, a natural reaction to injury, can induce optic nerve regeneration in a lab-dish concoction including rat retinal ganglion cells.

    By Nathan Seppa
  3. Health & Medicine

    Catching macular degeneration early

    Scientists have developed a test that uses the eye's ability to adapt to darkness as a test for age-related macular degeneration, the most common cause of blindness in elderly people.