Bison versus Mammoths: New Culprit in the Disappearance of North America’s Giants

Bear-size beavers, mammoths, horses, camels and saber-toothed cats used to roam North America, but by 11,000 years ago most such large mammals had died off. To this day, experts debate what caused this late Pleistocene extinction: climate change, overhunting by humans, disease–or something else? Eric Scott, curator of paleontology at the San Bernardino County Museum in Redlands, Calif., suggests it was something else: namely, the immigration of bison from Eurasia

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Bison versus Mammoths: New Culprit in the Disappearance of North America’s Giants