PhysOrg Posted May 31, 2022 Share Posted May 31, 2022 "Say 'Polly wants a cracker!'" This classic catchphrase is actually quite an insult to the birds who are among the most intelligent creatures on Earth. One particularly famous example was Harvard-based African gray parrot Alex, who not only developed a vocabulary of over 500 words, but also understood their meaning. But will these fascinating animals survive the impending species crisis?View the full article Quote Link to comment Share on other sites More sharing options...
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