Comment: They don't yet know whether the FOXP2 is the only

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In reply to comment: That's still not (see in situ)

They don't yet know whether the FOXP2 is the only

language gene, but its human version is definitely related to language. Chimps don't have the same version of the gene, so they can't talk. (Thank God! I would rather listen to talking cats than talking chimps any day...;-)