How might brain shape reveal clues about hominin history?

A) The globe-shaped brain of modern humans may result from enlargement of parts that are involved in speech.
B) The elongated brains of Neanderthals may reveal that their language capacity was less developed than that of modern humans.
C) Only brain size can give scientists clues about cognitive ability.
D) a and b
E) none of the above

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Gianne Carlos · Accepted Answer

Final Answer : D, Explanation :  The shape of the brain can provide insights into the cognitive abilities and evolutionary adaptations of different hominin species. The globe-shaped brain of modern humans suggests an enlargement of areas involved in complex functions like speech, while the elongated brains of Neanderthals might indicate differences in cognitive capacities, including language. This suggests that both the shape and size of the brain, rather than size alone, can offer clues about the cognitive abilities and evolutionary history of hominins.

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