Einstein, the African grey parrot, has a vocabulary of more than 200 words and sounds; she can perform nearly half on cue. Why you should listen to him： Einstein, the African grey parrot, squawked to fame after a winning performance on the Animal P...
Einstein, the African grey parrot, has a vocabulary of more than 200 words and sounds; she can perform nearly half on cue. Why you should listen to him： Einstein, the African grey parrot, squawked to fame after a winning performance on the Animal P...
