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Homo heidelbergensis,
This evolutionary bottleneck might have led to the emergence of a new species, Homo heidelbergensis,
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blond child grimaces nose to nose with a wax sculpture of neanderthal leaning on a stick
A child looks into the eyes of a model Neanderthal at the Neanderthal Museum in Germany. Scientists think they've uncovered evidence early European humans may have shared a cave with Neanderthals, and maybe even a culture.
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Cat in field
A stock image of a cat looking into the distance.
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Thumbs Up and Thumbs Down
Every two minutes or so, all over the world, someone asks someone else for a small favor. and all over the world, almost everyone says yes. All the time.

How humans behave during natural disasters

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Two adult killer whales breach the water. One is rubbing against the other.
Two Southern Resident killer whales.
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The fossilized skull of Coccocephalus wildi, an early ray-finned fish that swam in an estuary 319 million years ago.
The fossilized skull of Coccocephalus wildi, an early ray-finned fish that swam in an estuary 319 million years ago.