Biological Evolution: Unity and Diversity

  1. Fossils

    A really big (but extinct) rodent

    A rodent about the size of a bison once roamed the riverbanks of ancient Venezuela.

    By Emily Sohn
  2. Tech

    Butterfly wings and waterproof coats

    Inspired by nature, scientists have come up with clever new designs for waterproof coatings.

    By Emily Sohn
  3. Fossils

    Dino-dining dinosaurs

    Some dinosaurs may have actually eaten each other.

    By Emily Sohn