News

  1. Neuroscience

    How smart was T. rex?

    A debate over how to count neurons in dinosaurs is raising questions about how to understand extinct animals’ behavior.

    By Freda Kreier
  2. Paleontology

    How did an ancient shark parasite end up fossilized in tree resin?

    A worm preserved in 99-million-year-old amber resembles modern flatworms in shark intestines. The rare finding has scientists stumped.

    By Saugat Bolakhe
  3. Artificial Intelligence

    Should we use AI to resurrect digital ‘ghosts’ of the dead?

    Technology that creates deepfake bots of dead loved ones may need safeguards, experts warn.

    By Kathryn Hulick
  4. Animals

    Tiger beetles may weaponize ultrasound against bats

    In response to recordings of echolocating bats, tiger beetles emit noises that mimic toxic moths that bats avoid.