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    • How Smart Are Animals?

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        How Smart is Fido? That dog who sits at the edge of your bed and waits for you to utter the magic words: “let’s go for a walk.” How smart is that fish swimming by you in the sea? It is well known that the chimpanzee is our closest living relative from a genetic point of view. But, are they the second smartest creatures on earth? Or, is it the dolphin? This documentary looks at some interesting examples. There’s a dog who can understand more than 1,000 words. A mollusk who can bring back shrimp from a closed jar. A dolphin who can understand written language.

      Watch How Smart Are Animals? on PBS. See more from NOVA scienceNOW.

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      Published on February 26, 2012 · Filed under: Biology, Environment, Editor's Picks, Nature