Natural selection will always select for a bigger brain over other possible solutions if a larger brain is possible.

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Natural selection will always select for traits that increase survival and reproductive success. While a larger brain can certainly be advantageous in some situations, there may be other evolutionary pathways that improve survival and reproductive success without necessitating a larger brain. Additionally, developing a larger brain requires significant metabolic resources, so it may not always be the most efficient solution.

Natural Selection Will Always Select for a Bigger Brain Over