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Rocket Launch Pollution

BBC Inside Science

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The Evolution of the Neanderthals

Humans alive today had about 2% Neanderthal DNA. The genes that we've retained are not there randomly, they're genes that gave us an advantage as we moved from warm, light, Africa into a much colder, darker part of the world. So some of these genes are to do with body hair, others to do with skin colour. Many of those Neanderthal gene variants that have been retained in our DNA are those that helped us to adapt to the different new disease environment in Eurasia.

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