Genetic hints of extinct human lineages — and the benefits we might have received from having sex with them — were among the discoveries this year regarding the evolution of our species.
Other key findings include evidence strengthening the case that fossils in South Africa might be those of the ancestor of the human lineage. Research also suggests humans crossed what is now the desolate Arabian Desert to expand out of Africa across the world...
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jueves, 22 de diciembre de 2011
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