Monkeys are geniuses compared to people.

A person decides, "I don't like bananas" or, "I don't feel like one right now" or, "Ok, but I gotta get the peel and all those strings off it first."

The monkey eats the whole thing peel and all and thinks, "Damn, that was grubbin. I'm lucky I found some food. Now I won't die of starvation for a little while longer."