Handedness: Has Human Evolution Always Been Right?

Right-handedness is very much a human thing. About 90 percent of Homo sapiens are right-handed. On the other hand, literally, about 50 percent of apes are southpaws, similar to most other primates.

Researchers believe that right-handedness may be linked to other traits, such as the development of language. They have long sought to find the point in hominin evolution where the right hand became dominant for the vast majority of a species.

Previous research identified right hand dominanc

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