Study: Paleo-Americans hunted mastodons, mammoths and other megafauna in eastern North America 13,000 years ago

The earliest people who lived in North America shared the landscape with huge animals. On any day these hunter-gatherers might encounter a giant, snarling saber-toothed cat ready to pounce, or a group of elephantlike mammoths stripping tree branches. Maybe a herd of giant bison would stampede past.