The Living Planet: Temporada 1, Episódio 7

1 - 7: The Sky Above

High above Earth's surface David Attenborough floats weightless, showing that without gravity the world would be a chaotic place. Seen from space huge cloud patterns sweep across the globe. But some species like spiders, ski-diving frogs, gliding squirrels, birds and bats have overcome the force of gravity to fly through the air.