Sky Nature

The veteran naturalist examines the world of flight, travelling across the globe to chart the evolutionary story of those creatures who seemingly defy the rules of gravity by taking to the air. Initially focusing on insects, Attenborough meets a descendant of the dragonfly, before examining the Atlas beetle, which tends to restrict flight to times when it needs a mate or a fresh supply of food. More aesthetically pleasing is a group of beautiful tropical butterflies, followed by an in-depth study into the blow fly - the jet fighter of insects

The veteran naturalist visits the jungles of Borneo to meet creatures that like to glide through life - the harlequin tree frog and the little-known colugo - often referred to, incorrectly, as a flying lemur. He also has a CGI-assisted encounter with the first true vertebrate flyer, the pterosaur, receives a flying lesson from a small flock of swans at Loch Lomond in Scotland and encounters the planet's largest species of bat

The veteran naturalist turns his attention to creatures that dominate the skies today. He begins with the vast bird family, watching a group of vultures as they go scavenging and some peregrine falcons dive bombing for their prey. He then moves on to the floating forests of Ecuador to find out what makes the humble hummingbird tick, before ending his journey at the Gomantong bat caves of Borneo - a place he first filmed in 1972 - witnessing a mass exodus of the creatures

The making of David Attenborough's documentary series charting the evolution of creatures that defy the rules of gravity

The animals that live on the border between the US and Canada face many challenges - even politics. This documentary reveals how the boundary affects them over 12 months

Cameras follow turtles and tiger sharks roaming volcanic reefs, and tarsiers leaping through forests on the hunt