The Tree of Knowledge and the Neocortex

The story of Eve is actually quite similar to what… the scientific evidence suggests for the origin of primates… [a necessary] preadaptation for acute vision and large brains was the enjoyment of a diet of fruits and nectar (Eve’s fruit). When snakes (the Serpent) appeared, a particularly powerful selective pressure that favored expansion of the visual sense, only ancestral mammals having a diet of fruits or nectar from flowers in that arboreal milieu could afford to expand their visual systems, as such expansion typically occurs at a cost to olfaction. Only those mammals that ate odoriferous foods such as fruits and flowers could afford to reduce their sense of smell and still find their food efficiently.1

  1. http://filmslie.com/the-human-eye-and-the-evolution-of-vision/ []

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