Watch clips from the programmes being broadcast to celebrate David Attenborough's 90th
How life has changed and adapted over the past three thousand million years.
David Attenborough describes the massive variety of life that lives on Earth.
How Darwin noticed different adaptations in the tortoises from Galapagos.
David reads out the final paragraph of Charles Darwin's work of scientific literature.
David Attenborough talks about his longstanding fascination with discovering fossils.
David Attenborough learns about the athletic ability of the tyrannosaurus rex.
When David gets a thorn stuck in his hand, Charles Lagus comes to the rescue.
Thanks to natural history films - we are more aware of animals than ever before.
Kirsty and David discuss a memorable moment from the 1979 production, Life on Earth.
One of the gorillas gives his opinion of the famous broadcaster.
How could the people of Easter Island create and move such imense structures around?
The 成人论坛 celebrates Sir David Attenborough on his 90th birthday.
An archivist in the 成人论坛 Natural History Unit discovers unseen colour footage.
David Attenborough plays back sound recordings to astonished villagers in Sierra Leone.
David Attenborough meets a particularly talented lyrebird.
On an expedition in New Guinea, the 成人论坛 film crew give gifts to the Biami tribe.
David Attenborough and cameraman Charles Lagus describe their near miss take off.
David Attenborough introduces the world of glowing fungi, in the soil and above ground.
David discusses ornamental decorations with the Biami tribe, without a translator.
Two impassioned fans talk about their hero.
David Attenborough has the honour of a dragonfly being named after him.
David Attenborough investigates the age of an elephant bird's egg that he has discovered.
David Attenborough climbs up a tree to capture a 12鈥� Burmese python.
