Mammoths and saber-toothed cats may be the most famous beasts of the Ice Age. But they shared the prairie with horses and camels, too—both of which evolved in North America and crossed the ice bridge into Eurasia, before disappearing here. Matthew Kohn (Distinguished Professor, Department of Geosciences Boise State University Boise, Idaho) and Christopher Hill (Associate Dean, Graduate College Associate Professor, Anthropology Boise State University Boise, Idaho) talk about the lesser-known fauna of the Ice Age.