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How Birds Survived the Dinosaur Apocalypse
Birds are the only dinosaurs still alive today, but how did they survive the asteroid? Most birds were wiped out, along with the rest of the dinosaurs and 75 percent of all life on Earth, but one group of birds made it through. Discover how they endured, and which traits made them resilient in the brutal aftermath of the mass extinction event.
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Experience the colossal geologic forces that shaped our continent over 3 billion years.
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Watch as the New Horizons spacecraft captures our first clear view of Pluto’s icy surface.
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The catastrophic collapse of the ground beneath our feet is a growing worldwide hazard.
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Which technologies worked in the race to track down the men behind the marathon attack?
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Can science help us understand why some people commit horrific acts of mass murder?
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52:52
A team uncovers the advanced engineering behind an ancient Egyptian war machine.
