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Sphere 0 (or the Earth)

Homo sapiens’ Conquest of the Land Surface

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The Mystery of the Seven Spheres
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Abstract

It is a fact that within a few tens of thousands of years after leaving Africa, that is about 70,000 years ago, sapiens came to supersede all other species in the genus Homo, driving them to extinction, but not before cohabiting for a while and acquiring a bit of genetic material, let us say that 2 % of Neanderthal that is in all of us and which can still occasionally leap out rather unexpectedly.

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Correspondence to Giovanni F. Bignami .

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Bignami, G.F. (2015). Sphere 0 (or the Earth). In: The Mystery of the Seven Spheres. Springer, Cham. https://doi.org/10.1007/978-3-319-17004-6_2

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