Notebook

  1. Paleontology

    Loblolly sets record for biggest genome

    At 20 billion base pairs, the loblolly pine is the largest genome sequenced to date.

    By Ashley Yeager
  2. Science & Society

    Anti-leukemia vaccine reported hope of future

    Fifty years ago, Science News Letter reported on the promise of a vaccine to prevent leukemia. No preventive vaccine has come to pass, but leukemia vaccines as treatments has yielded promising results.

    By Science News Staff
  3. Animals

    Caiman tears make a salty snack

    An ecologist observed a bee and a butterfly hovering around a caiman, engaging in lacryphagous behavior, slurping up the crocodilian’s tears.

    By Bethany Brookshire
  4. Paleontology

    ‘Hidden dragon’ fossil is oldest flying reptile

    Researchers have unearthed the oldest pterodactyl ever discovered: Kptodrakon progenitor soared over the Earth 163 million years ago.