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Life on Earth

Episode 2: Building Bodies

Duration: 54 minutes

on BBC Two Wales

Available for years

David Attenborough examines the creatures and fossils of the Great Barrier Reef, which provide clues to how the original primitive animals of the sea evolved. Show more

BBC Two Wales

About BBC Two

BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.