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Alex the African Grey Parrot Irene Pepperberg, an animal psychologist, bought Alex in 1977 from a pet store on the Northwest Side. She began a 30-year study that would change our perception of the intelligence of birds. Her work with him challenged the common belief that birds only mimic human speech, without any understanding of what it means. What is Alex? Alex (short form for Avian Learning experiment) was originally an African grey parrot purchased at a pet store. Through his lifetime, he broke new ground in animal psychology, and proved that animals are just a
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