In Northern Botswana, the "Eternal Enemies: Lions and Hyenas" (1992) clash in an intense feud where the hyena matriarch and a male lion fight to the death. Glenn Close narrates "In Search of the Jaguar" (2003), a fascinating program accompanying biologist Alan Rabinowitz to the wilds of Brazil, Belize, and Panama, advocating for the endangered jungle cat even as he combats his own serious illness. "The Last Stand of the Great Bear" (2004) follows a team of scientists as they venture into British Columbia's Great Bear Rain Forest, searching for the elusive white spirit bear and fighting to protect the forest's fragile ecosystem. The plights of pilot, humpback, bowhead, and orca whales are chronicled as the "Whales in Crisis" (2006) struggle against various natural and manmade threats. 3 3/4 hrs. total on four discs. Standard; Soundtrack: English Dolby Digital stereo.