Some 2 million years ago, when the high Arctic was a much warmer, greener place, a unique collection of animals coexisted: Caribou, geese, hares, even camels.
Aired:
| Expires: | Runtime: 2m 54s
You are leaving GBH.org
You are leaving gbh.org and going to a web page that is not owned by GBH. If you are streaming, your experience will be interrupted.