The wild, extinct supercow returning to Europe

Story highlights

  • Europe's largest mammal the auroch is being re-created through selective breeding
  • Fourth generation herds in pilot projects around Europe
  • Keystone herbivore could restore failing ecosystems and save other species

(CNN)Our ancestors learned to respect the auroch, and immortalized them in pre-historic cave paintings.

The earliest cows were mighty beasts that stood almost as tall as elephants, with lean, powerful frames and fearsome horns that would make a hunter think twice.