Text written in Basque and translated automatically by Elia without any subsequent editing. SEE ORIGINAL
Weaker gag, bigger brain
2004/05/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria
A mutation caused the muscles of the human gag to weaken, causing an increase in human intelligence.
A mutation caused the human gag muscles to weaken, causing an increase in human intelligence.
The mutation occurred about 2.4 million years ago. Consequently, the man's ancestor stopped producing a MYH16 protein that was involved in the formation of the gag muscle.
This caused the loss of muscle, the decrease of the jaw, which caused the growth of the skull, which allowed the brain to grow.
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