BBC2 are giving you "another chance to see" last Monday's opening episode of David Attenborough's new nature show. Yep, TV's crazy this Saturday. Sir Attenborough narrates this documentary exploring extreme behaviour in the natural world, uncovering some of the strategies animals have developed to stay alive and to breed, from Komodo dragons tackling buffalo to the courtship battle of the humpback whale. He begins by focusing on the methods used by creatures such as cheetahs, bottle-nosed dolphins and Venus fly-traps to survive in harsh environments.