American Arctic -
nature

The Arctic National Wildlife Refuge has long protected survivors of the Ice Age, but this once remote and frozen fortress is on the brink of change. Now, for the caribou, musk oxen, polar bears, and Arctic foxes, the ice age is slipping away.

Duration: 56 minutes and 46 seconds

Episode Number: 4010

About Nature:

NATURE, television's longest-running weekly natural history series, has won more than 200 honors from the television industry, parent groups, the international wildlife film community and environmental organizations, including the only award ever given to a television program by the Sierra Club.

Visit the Nature web site

---

Watch Nature - Clips, Episodes & Previews

---

---

NHPBS Over-the-Air Broadcast

---

NHPBS Five Channels

NHPBS Passport - Learn More