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World's Fastest Animal Preview
See the world through the eyes of nature’s fastest animal: the peregrine falcon. Though once perilously endangered in the U.S., this spectacular predator is now thriving again in American cities and on every continent but Antarctica. What is the secret to its predatory prowess? Join expert falconer Lloyd Buck as he trains a captive peregrine and puts its hunting skills to the test.
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New evidence sheds light on the remarkable life—and mysterious collapse—of the ancient jungle city.
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What if violent asteroid impacts actually jump-started life on Earth? Explore a dramatic theory.
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See how ingenuity and teamwork keep the crew alive and doing science 250 miles above Earth.
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Astronauts and Mission Control relive terrifying moments during construction of the ISS.
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Find out why deadly flash floods are on the rise and how we can protect ourselves from them.
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Explore mysterious 9,000-year-old Stone Age megastructures found in the Arabian Desert.
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Discover how two revolutionary ancient inventions changed the course of humanity forever.
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Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.