Four years in the making, and filmed over 3000 days across every continent and in every habitat, see 130 incredible stories from frontiers of the natural world. Discover the glorious variety of life on Earth and the spectacular and extraordinary tactics animals and plants have developed to stay alive. This is evolution in action: individual creatures under extreme pressure to overcome challenges from adversaries and their environment.

Originally broadcast on the BBC in 2009. Special features: Disc 1. Making of featurettes (Challenges of life, Reptiles & amphibians, Mammals); Music only viewing. Disc 2. Making of featurettes (Fish, Birds, Insects); Music only viewing. Disc 3. Making of featurettes (Hunters & hunted, Creatures of the deep, Plants); Music only viewing. Disc 4. Making of "Primates" featurette; Deleted scenese; Music only viewing.

Disc 1: Challenges of life -- Reptiles and amphibians / producer, Rupert Barrington-- Mammals / producer, Rupert Barrington. Disc 2: Fish / producer, Adam Chapman -- Birds / producer, Patrick Morris -- Insects / producer, Rupert Barrington. Disc 3: Hunters and hunted / producer, Adam Chapman -- Creatures of the deep / producer, Neil Lucas -- Plants / producer, Neil Lucas. Disc 4: Primates / producer, Patrick Morris -- The making of life / producers, Jonathan Smith, Simon Blakeney, Tom Clarke, Rosie Thomas, Stephen Lyle ; producer/writer, Sara Edelson.