We Must Be Wary Of Granting Too Much Power To Natural Selection By Viewing All Basic Capacities Of Our Brain As Direct Adaptations.

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...we must be wary of granting too much power to natural selection by
viewing all basic capacities of our brain as direct adaptations. I do not
doubt that natural selection acted in building our oversized brains--and I
am equally confidant that our brains became large as an adaptation for
definite roles (probably a complex set of interacting functions). But these
assumptions do not lead to the notion, often uncritically embraced by strict
Darwinians, that all major capacities of the brain must arise as direct
products of natural selection.
-- Stephen Jay Gould, "The Mismeasure of Man"

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