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Laying eggs and keeping nests are two things that keep birds grounded.
S1E8 • The Life of Birds • 1998 • Nature
This documentary follows a spectacular pioneering story of nature preservation. Engadin was created 100 years ago and the wildlife left without human interference to re-populate the Alps first nature reserve. Now ibex, lynx and wolves are thriving in this pristine area.
2015 • Nature
Every year, thousands of salmon make their way upstream along the nearly 2000-mile-long mighty Yukon River, desperate to reach spawning beds. Eagerly checking their progress is a host of hungry predators, from grizzly bears to bald eagles-all desperate to stock up on protein before the long winter months ahead.
7/8 • Arctic Secrets • 2015 • Nature
A look at the annual return of millions of salmon to the streams where they were born.
2/6 • Nature's Great Events • Nature
The Miller-Urey experiment was the first attempt to scientifically explore ideas about the origin of life. Stanley Miller simulated conditions thought be common on the ancient Earth. The purpose was to test the idea that the complex molecules of life (in this case, amino acids) could have arisen on our young planet through simple, natural chemical reactions.
Stated Clearly • 2015 • Nature
The first part explores how centuries of scientific and religious dogma were overturned by the earliest discoveries of the existence of cells, and how scientists came to realize that there was, literally, more to life than meets the eye.