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Simply the Best Documentaries

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Vegan 2017 The Film
D-Day: As it Happens (1)
Did Darwin kill God
Corruption
The Mastery of Flight
JFK: To the Brink
Clash of the Gods:Thor
The Rise and Rise of Bitcoin
Land of Hope and Glory
Conquistadors: The Fall of the Aztecs
What the Health
Just Do It
Meet the Romans: All Roads Lead to Rome
The True Cost
Flight of the Butterflies
The Roof of the World
Addicted to Sexting
Africa the Greatest Show on Earth
The Last Reef
The Turning Point
WWII In 3D
Ocean Predators
Dawn Of Humanity
Top Science Stories of 2017
Pink Floyd: P. U. L. S. E. Live at Earls Court (I)
Bernini
Tales by Light Himalaya
Ancient Rome: Nero
Beyond the Big Bang
Hiding in the Light
The Lives of the Stars
The Wehrmacht The Blitzkrieg
Dirty Wars
Roving Mars
Zeitgeist The Movie
Through the Wormhole Season 6: Are We Here for a Reason

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To Fly or Not to Fly
To Fly or Not to Fly 1998

The first episode looks at how birds first took to the skies in the wake of the insects. It begins in Mexico, where Sir Attenborough observes bats being outmanoeuvred by a red-tailed hawk. Pterosaurs were the birds' forerunners, some 150 million years after dragonflies developed the means of flight, but eventually went extinct together with the dinosaurs. Birds had by then already evolved from early forms like archaeopteryx, the first creature to possess feathers. Its ancestry can be traced through reptiles, and some current species, such as the flying lizard, possibly show paths this evolution may have taken." One of the biggest birds to have ever existed was the terror bird, which proliferated after dinosaurs vanished and stood up to 2.5 metres tall. By comparison, the ostrich, while not closely related, is the largest and heaviest living bird. It was probably the evasion of predators that drove most birds into the air, so their flightless cousins evolved because they had few enemies. Accordingly, such species are more likely to be found on islands, and Sir Attenborough visits New Zealand to observe its great variety, most especially the kiwi. Also depicted is the moa, another huge creature that is now gone. The takahē is extremely rare, and high in the mountains of New Zealand, Sir Attenborough discovers one from a population of only 40 pairs. Finally, another example on the brink of extinction is the kakapo, which at one point numbered only 61 individuals. A male is heard calling — an immensely amplified deep note that can be heard at great distances from its nest.

Category:Nature  Duration:50:00   Series: The Life of Birds

 
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