Uncategorized

  1. Life

    Gene found that controls beak size in Darwin’s finches

    A beak-size gene helped determine whether Darwin’s finches survived a drought.

    By Tina Hesman Saey
  2. Paleontology

    Clearer picture emerging of dinosaurs’ last days

    Dinosaurs’ final days may have included both a giant asteroid and gradual species die outs. Two new studies paint an increasingly intricate picture of dinosaur’s demise.

    By Meghan Rosen
  3. Neuroscience

    Left brain stands guard while sleeping away from home

    Part of the left hemisphere stands sentry while the rest of the brain and body snooze.

    By Laura Sanders
  4. Agriculture

    Bacterium still a major source of crop pesticide

    Bacillus thuringiensis bacteria have provided pest-fighting toxins for over 50 years.