Evolutionary biologist and master skeleton builder Ben Garrod begins a six-part journey to discover how bones have enabled vertebrates to colonise and dominate practically every habitat on Earth

Evolutionary biologist and master skeleton builder Ben Garrod discovers how the skeleton has adapted for vertebrates to move on land in a remarkable number of ways.

Ben Garrod finds out how the skeleton has allowed vertebrates to do the most remarkable thing of all - take to the air.

Ben Garrod delves into the surprising ways in which bone has evolved to help vertebrates sense the world around them. He reveals why predators like the wolf have eyes at the front of their skull whereas prey animals such as sheep usually have eye sockets on the side of their heads.

Ben Garrod uncovers the secrets of how vertebrates capture and devour their food using extreme jaws, bizarre teeth and specialized bony tools. He takes a cherry picker up a giant sperm whale's jaw, finds out which animal has teeth weighing five kilos each and which uses its skull as a suction pump.

Ben Garrod seeks out the big part that bones can play in reproduction. Through sexual selection, the skeleton has adapted to aid courtship, competition and even copulation.