How Bison are Saving America's Lost Prairie
Episode 7 | 8m 28s | Video has closed captioning.
The prairie landscape has come to symbolize the American heartland. But an ecosystem that once covered a vast swath of the continent has all but disappeared. Just a tiny fraction remains. But researchers and conservationists in Oklahoma may have hit upon two surprising keys to saving this lost ecosystem: bison and fire. Their efforts could help restore degraded grasslands around the world.
Problems Playing Video? | Closed Captioning