Notebook

  1. Animals

    Earth’s magnetic field guides sea turtles home

    Over 19 years, geomagnetic fields changed slightly and so did loggerheads’ nesting sites.

    By Julia Rosen
  2. Humans

    Babbling to babies is OK, despite previous warnings against it

    Fifty years ago, a researcher advised banning baby talk, but results since then say otherwise.

    By Tina Hesman Saey
  3. Animals

    ‘Bag of chips effect’ helps bats find a meal

    Bats get a clue to where dinner is by listening to peers attacking prey.

    By Kate Baggaley
  4. Animals

    Why ground squirrels go ninja over nothing

    Ground squirrels twist and dodge fast enough to have a decent chance of escaping rattlesnake attacks.