As loss of pack ice in Alaska's north increases, polar bears struggle to navigate an ocean of melting ice. Watch video.

With help from its mother, a cub catches its first salmon at Brooks Range, high in the Alaskan Arctic.

Huge herds of caribou play an integral role in shaping the Arctic landscape.

Snapshots from northern Alaska, the last leg of the Bears of the Last Frontier journey.

Chris Morgan explores the world of black bears caught in the crossroads of urban development in Anchorage and the wilderness.

Chris spends time with a black bear family living in Anchorage, Alaska's urban mecca. Watch video.

An abundance of garbage and bird feeders make Anchorage an appealing place for hungry black bears to make their home.

An Anchorage black bear is driven to greener, more bear-friendly surroundings.

Chris Morgan sets up camp alongside the largest concentration of grizzlies in the world. Hour one of the three-part Bears of the Last Frontier series.

Join ecologist and bear biologist Chris Morgan for a LIVE video chat May 8, immediately after broadcast.