RELENTLESS ENEMIES: Few of nature's creatures share such a fierce rivalry as lions and buffalos, and in this documentary from National Geographic filmmakers Dereck and Beverly Joubert the brutality of these confrontations is captured in all of its ferocious glory.

ATMOSPHERES: EARTH, AIR AND WATER: This National Geographic-commissioned release actually constitutes an ambience film; it offers footage shot in three distinct atmospheres--one set on Earth, another set in the air, and a third set under water-- combined with soundtrack options that enable the viewer to choose between world music and a symphony natural sounds.

JOURNEY TO THE EDGE OF THE UNIVERSE: Take an express journey to the edge of the universe as the filmmakers at National Geographic use computer-generated animation to build on images captured by the Hubble Telescope. Beginning on Earth, viewers are hurtled into the deepest reaches of space.

KINGDOM OF THE BLUE WHALE: This documentary from National Geographic takes a super in-depth look at the mysterious creature the blue whale, exploring how the effects of currents on the ocean floors influence the ways the massive creatures travel and eat, and even examining the animals' DNA.

RHINO RESCUE: The black rhino is under threat in Botswana. After a pair of filmmakers witnesses the killing of the last of these creatures in the country, they lead a valiant effort to bring the black rhino back to the southern African nation.

Blu-ray Disc Features:

6-Disc Set
Region [unknown]
Audio:
Dolby Surround 5.1 - English
Stereo - English
Additional Release Material:
Bonus Footage: Cheetah Chase, Wild Chronicles: Whales
Featurette: The Making of Extreme
Text/Photo Galleries:
Photo Galleries