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two cells fusing together

Explore Evolution

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6 footprints embedded in beige, crusty desert surface

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Ice Age Footprints

NOVA's Evolution Lab: Adventures in the Tree of Life

Silhouette of people walking towards camera with setting sun behind them

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Human

A skeleton of a whale in a desert-like area.

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When Whales Could Walk

Snow-covered man wearing goggles.

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Hunt for the Oldest DNA

Small mammal ancestor emerging from burrow

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Mammal Origins

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