It’s an evolutionary simplification of the larynx.
A so-called evolutionary simplification of the larynx led to human speech. This trait is still present today. Researchers are unsure at what point in history it evolved.
Scientists have spotted the evolutionary modifications in the voice box that make humans able to speak compared to other primates. They did this through an examination of the voice box, or larynx, in 43 species of primates.
Curioustiger/iStock.
No vocal membrane.
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