According to Dunbar (1993), why would larger social groups be associated with the evolution of larger brains?
A) Larger groups provided more protection for survival, which allowed for the evolution of larger brains.
B) Smaller groups tended to be too cohesive and unwilling to adopt new ideas, leading to stagnant brain evolution.
C) Smaller groups were more vulnerable to predation and defeat in warfare, preventing the evolution of larger brains.
D) Larger groups were more successful in hunting, and the additional food led to the evolution of larger brains.
E) Larger groups had greater social complexity, which drove the evolution of larger brains to handle this increase.

Question

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Larger social groups have greater social complexity, which requires individuals to manage more social relationships and interactions. This increased complexity is believed to have driven the evolution of larger brains to handle these demands, according to Dunbar's hypothesis.

According to Dunbar (1993), Why Would Larger Social Groups Be