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Why Do Dogs Smell Each Other's Butts? - Reactions

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Published on Jul 28, 2014

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We are getting to the bottom of one of the biggest quandaries in science: Why dogs sniff each other’s butts. Turns out this behavior is just one of many interesting forms of chemical communication in the animal kingdom. Dogs use a special feature called the Jacobsen's Organ to get chemical signals from their nose sent directly to their brain.

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