The monkey's your uncle.

Remember how sometimes you fall asleep but jolt-freak yourself awake because you feel like you are falling & some scientists believe that's because your evolved cells are remembering back to a time when you were a monkey & were falling out of a tree?

BaaaaaaHAHAHA!

Good one, "science."

But, how do you explain my lack of instinct to fling my own poop when I am mad?