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Paleontologists Discover New Mammal Fossils Hidden in Rocks

Hidden inside ordinary-looking rocks, an astonishing trove of fossils paints a dramatic picture of how rat-sized creatures ballooned in size and began to evolve into the vast array of species—from cheetahs to bats to whales to humans—that rule our planet today.

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NOVA Season 51
53:38
Explore big discoveries that have revolutionized our understanding of the universe.
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Find out who’s using your data and what you can do about it.
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Explore the spectacular cosmic phenomenon of a total solar eclipse.
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Follow the quest to create a lifesaving malaria vaccine.
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The inside story of China’s meteoric rise to the forefront of global innovation.
Ancient Earth: Humans
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53:15
How did Earth give rise to humans? See what made our species' existence possible.
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