Extensive comparative and neurobiological research supports the view that the human brain evolved in response to specific dietary, social, and ecological evolutionary pressures.
The claim is specific and empirical, dealing with the well-established scientific study of hominid brain evolution. Multiple retrieved papers discuss how specific pressures (such as social complexity, dietary breadth, energy trade-offs, and tool use) drove the evolution of the human brain. Therefore, the evidence overwhelmingly supports the claim.