All six episodes from the third series of the documentary presented by esteemed British naturalist David Attenborough exploring some of the natural world's greatest curiosities. Among the issues examined by Attenborough are IQ research on orangutans and crows, the eating methods of large constrictor snakes and the powers of regeneration. The episodes are: 'Impossible Feats', 'Curious Minds', 'Expandable Bodies', 'Curious Feeders', 'Curious Cures' and 'Remarkable Regeneration'.