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A 52-minute short version of the documentary The End of Suburbia, about peak oil and the end of cheap energy. It argues that American suburbs depend on cheap oil and may become the slums of the future.

A clip from BBC's Last Chance to See in which Stephen Fry and Mark Carwardine meet Sirocco, a kakapo, who famously tries to mate with Carwardine's head. The kakapo is a critically endangered flightless New Zealand parrot.

A clip from Attenborough's Life of Mammals following a San tribesman in the Kalahari on an eight-hour persistence hunt, running down a kudu through harsh heat. It shows tracking, endurance running and the hunter's reaction after the kill.

A three-minute clip from BBC's Planet Earth narrated by David Attenborough about Cordyceps, the fungus that infects insects and takes over their behavior. It shows an infected ant and its demise.

A short vintage film clip of Seymour Papert, creator of Logo, on using computers to spark children's imagination and learning.

A short BBC clip in which David Attenborough shows a lyrebird imitating sounds, including camera shutters, car alarms and chainsaws. It comes from the BBC natural history series Life on Earth.

A short BBC Earth clip from David Attenborough's Life of Birds showing a lyrebird imitating sounds, including a chainsaw and camera shutter, so accurately it is hard to tell from the real thing.

A BBC Weird Nature clip about vervet monkeys in the Caribbean that drink alcohol, and how they split into heavy drinkers, social drinkers and teetotalers.

A clip from the documentary American Tongues about the isolated Tangier Island, Virginia, whose dialect is among the most unusual in the US. It is often said to resemble speech from centuries ago.

A short BBC clip narrated by David Attenborough showing crows in Japan using city traffic to crack nuts, dropping them at intersections and retrieving them when the light changes.

Short BBC Earth clip from Life of Mammals in which David Attenborough shows orangutans imitating human behaviors like washing clothes with soap and using tools.