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Environment

How climate change played a role in a 10,000-year ice age journey

The climate 25,000 years ago was cold, very cold. It was the height of the last ice age, and survival required desperate measures — especially from those in Eurasia, ...

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Environment

Drought followed by brain: How climate change spurred evolution of human intelligence

Scientists show shifts from dry to wet and back in East Africa’s Rift Valley caused the development of the human brain.

Humans evolved their ...

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