
Modern genomes from Nigeria and Sierra Leone show signals that scientists call ghost DNA — from an unknown human ancestor. That means that prehistoric humans likely procreated with an unknown group.
(Image credit: Westend61/Getty Images/Westend61)
Posted by NPR - Africa News on

Modern genomes from Nigeria and Sierra Leone show signals that scientists call ghost DNA — from an unknown human ancestor. That means that prehistoric humans likely procreated with an unknown group.
(Image credit: Westend61/Getty Images/Westend61)
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