Predation Pressure From Snakes on Primates

Predation pressure from snakes is ultimately responsible for the superior vision and large brain sizes of primates. Psychologists have known for a long time that people canlearn fear to snakes, but they discovered in primates recently, a set of neurons which reveal neurobiological evidence of past selection for rapid detection of snakes. So the snake definitely woke us up color vision as an adaptation to fruit eating. It's not by accident that women make themselves look like ripe fruit in order to be attractive to men, right? And that's also not socio cultural in origin....