Status Updates From Възход и властване на бозай...

Foward-facing eyes with depth perception or big brains & a high IQ were not necessary to launch primates into the trees shortly after the Dinosaur Apocalypse, nor to start eating fruits, but a arboreal habitat & fruit-rich diets may have been prequisites for building a larger brain, by providing high-calorie meals inaccessible to most other mammals.