Word: parrotsã
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Dates: during 2008-2008
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...Alex was hardly your typical lab rat. Soaring far beyond “Polly want a cracker,” Alex cracked open an expansive body of knowledge about avian intelligence. After being randomly selected at a Chicago pet store, Alex revolutionized what we know about parrots?? cognitive capacities: he was able to identify 50 different objects, seven colors, five shapes, quantities up to six, and concepts of category, among other things. “He redefined the term birdbrain.” Pepperberg says. “When I began this work in the 70?...
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