Brown-polar hybrid bears may be a result of climate change, herd formations help caribou avoid mosquitos, data system connects animals from different zoos for captive breeding, and fluoride keeps sharks cavity-free.

Black skin, blubber, and a coat of clear tubes. Facts and stats to better know a polar bear.

A storm sets in. When the ocean freezes over, polar bears head out on the pack ice to hunt. Watch video.

Ecologist Chris Morgan observes a family of black bears that live in Anchorage, Alaska's urban mecca. Watch video from Bears of the Last Frontier: The Road North.

Chris Morgan explores the world of black bears caught in the crossroads of urban development in Anchorage and the wilderness. Watch the full second hour of the Bears of the Last Frontier series.

A black bear is relocated from the streets of Anchorage to the greener, more bear-friendly surroundings of Chugach State Park. Watch video from Bears of the Last Frontier: The Road North.

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.

A brown bear mother and her cubs come within feet of ecologist and bear biologist Chris Morgan. Watch video from Bears of the Last Frontier: City of Bears.

The scent that a female brown bear gives off helps the male determine if she is receptive to mating. Watch video from Bears of the Last Frontier: City of Bears.

It’s finally here — time for us to share our incredible Alaskan adventure with the world through Bears of the Last Frontier. It has been quite the journey. The film has been nearly two years in the making, and for both of us it has become an unforgettable part of our lives