Why do parrots talk, but dogs and cats and cows do not? The answer lies in their anatomy and their natural inclinations. This TED-Ed lessons goes over the different aspects of parrots that give them the gift of human speech. The bigger question is whether they understand the speech or not. Some parrots are pretty good at using language in context, but is that a totally learned response or an understanding of how language works? Or is there really a line between those two possibilities? (via Geeks Are Sexy)
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