ananyo writes: Even in death, the world’s most accomplished parrot continues to amaze. The final experiments involving Alex – a grey parrot trained to count objects – have just been published. They show that Alex could accurately add together Arabic numerals to a sum of eight and three sets of objects, putting his mathematical abilities on par with (and maybe beyond) those of chimpanzees and other non-human primates (abstract http://www.springerlink.com/content/q08n44457x236ln6/).
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