What have studies on the evolution of the hominin brain revealed?

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Studies on the evolution of the hominin brain have shown that various structural changes, such as the expansion of the arcuate fasciculus, may have facilitated the development of language by creating new connections in the brain. Additionally, the enlargement of areas like the putamen and cerebellum could have enhanced the control over the larynx, contributing to more precise vocalizations. Furthermore, evidence suggests that the complex language abilities seen in modern humans are unique to our species, indicating a significant evolutionary development.

What Have Studies on the Evolution of the Hominin Brain