From the BBC and the Discovery Channel -- co-producers of Planet Earth and The Blue Planet: Seas of Life, comes another landmark natural-history series, Life. Four years in the making and filmed over 3000 days, across every continent and in every habitat, Life employed breathtaking new high-definition filming techniques not available for Planet Earth to present 130 incredible stories from the frontiers of the natural world, 54 of which have never been filmed before. Packed with excitement, revelation and entertainment, this remarkable 11-part series is available in two versions: a U.S. edition narrated by Oprah Winfrey; and the original BBC edition, narrated by David Attenborough. The series captures unprecedented, astonishingly beautiful sequences and demonstrates the spectacular and extraordinary tactics animals and plants have developed to stay alive. Episodes are: "Challenges of Life"; "Reptiles and Amphibians"; "Mammals"; "Fish"; "Birds"; "Insects"; "Hunters and Hunted"; "Creatures of the Deep"; "Plants"; "Primates"; and "The Making of Life." Bonus features include "Life on Location" -- a collection of ten production video diaries showing the exhaustive efforts by the filmmaking team to bring the series to the screen, plus deleted scenes.