The world's smartest African Gray Parrot
Ever since a good friend gave me a book on the late Alex the parrot (thanks, Kris) I've been a bit fascinated by this birdbrain's brain. Alex could use numbers the way a toddler might, grasping the concept of addition and subtraction. In this article, we learn that Alex reportedly displayed the ability to add as high as 8 and sum the numbers of jellybeans shown to him momentarily and then hidden under three cups. That puts Alex firmly in the primate category of brains - in fact, this level has only been shown once in a chimpanzee, Otherwise, it's exclusively human. Or so we thought.