The WORST seasons of David Attenborough's Conquest of the Skies

Every season of David Attenborough's Conquest of the Skies ever, ranked from worst to best by thousands of votes from fans of the show. The worst seasons of David Attenborough's Conquest of the Skies!

David Attenborough embarks on an extraordinary journey to search for the origins of animal flight, beginning his epic global exploration in the unexpectedly skilful world of the flying insects, through to the evolution of birds from their flying dinosaur ancestors..