Free movies

NatureAs winter approaches, polar bears wait to hunt on sea ice in Kaktovik, Alaska; in late spring, grizzlies await caribou on the northern slope of Alaska's Brooks Range.

On now

Up next

Now PlayingNatureAs winter approaches, polar bears wait to hunt on sea ice in Kaktovik, Alaska; in late spring, grizzlies await caribou on the northern slope of Alaska's Brooks Range.0NatureRangers at Denali National Park in Alaska train hikers for planned encounters with grizzlies; bears fish for salmon.