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Life on Earth
1979
Published on, 1 month ago
Life on Earth
Lords of the Air 1 Season 8 Episode
55 min
1979
9.1
We examine the uses and advantages of birds' unique possession - the feather. Feathers are insulators; they provide the surface of the most perfect aerofoils known - bird's wings; and they play a central role in courtship
earth
natural history
biology
wildlife
ecology
animals
nature
evolution
natural selection
nature documentary
natural world
