Part of the massive Tongass National Forest, Admiralty Island in southeast Alaska supports the largest concentration of bears anywhere in the world. Sustained by a wealth of salmon streams, isolated and protected by their environment, some 1,700 Alaskan brown bears are part of a unique circle of life that has played out here for centuries. Beginning in August, millions of salmon — pink and chum, coho and sockeye — return to the island to spawn, providing a feast for the bears, eagles, orcas, sea lions and even the trees. As long as the salmon continue to arrive, all is well. But this year, the salmon fail to arrive for the first time, and the bears get a bitter taste of what the future may hold.
availableall_members74802187882295cove7480Fortress of the BearsEnter a world shaped by bears, trees, and salmon.Alaska's Admiralty Island is home to an estimated 1800 brown bears, the largest concentration of bears in the world. Enter a world shaped by bears, trees, and salmon, and the delicate balance of their interconnected lives.2012-01-24 23:01:00publishdisabledshowfalse6793Wild Animals in an Urban SettingEcologist Chris Morgan spends time with a black bear family living in Anchorage.2011-05-15 00:01:00http://www.pbs.org/wnet/nature/files/2014/09/Mezzanine_743-480x270.jpg1913495226cove6817Bears of the Last Frontier: The Road NorthEcologist Chris Morgan stops in Anchorage on his way to the north slope.2011-05-15 00:01:00http://www.pbs.org/wnet/nature/files/2014/09/Mezzanine_754-480x270.jpg1923029952cove