Animals Are Smarter Than You Think

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Alex The ParrotAlex the parrot has a brain the size of a walnut but on many counts evidences the intelligence of a young child.

To demonstrate, Pepperberg carried Alex on her arm to a tall wooden perch in the middle of the room. She then retrieved a green key and a small green cup from a basket on a shelf. She held up the two items to Alex’s eye.”What’s same?” she asked.

Without hesitation, Alex’s beak opened: “Co-lor.”

“What’s different?” Pepperberg asked.

“Shape,” Alex said.

National Geographic: Animal Minds