Not until the late 19th century did humans learn of the extraordinary art produced by their Ice Age ancestors ... of prey and predator animals -- bison, deer, bears, cattle, mammoths, and reindeer ...

For fossils, wild bison, stunning hiking trails, and tons of history, make a stop at this state park in Kentucky, where you ...

She also ate elk, bison, camels, horses ... played a big role in the extinction of many megafauna during the last Ice Age.