When people think of animals, stereotypes immediately come to mind. We automatically categorize chimps and dolphins as being one of the smartest animals on earth. Most of us know that elephants possess exemplary memory. We think pigs are filthy and lack social skills (which is far from the truth, actually). Owls must be wise because of their appearance. Those crows are devilish and cunning, right? And, don’t forget sheep. They are pretty stupid, some of the dumbest animals on earth. Hold on and read further and see if you agree later on.