
But Why Do Dogs Smell Each Other's Butts?
Season 1 Episode 20 | 2m 27s
We get to the bottom of Why dogs sniff each other’s butts. Spoiler: it's chemistry.
Reactions is getting to the bottom of one of the biggest quandaries in science: Why dogs sniff each other’s butts. Spoiler: it's chemistry. 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.
Problems with Closed Captions? Closed Captioning Feedback
Problems with Closed Captions? Closed Captioning Feedback

But Why Do Dogs Smell Each Other's Butts?
Season 1 Episode 20 | 2m 27s
Reactions is getting to the bottom of one of the biggest quandaries in science: Why dogs sniff each other’s butts. Spoiler: it's chemistry. 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.
Problems with Closed Captions? Closed Captioning Feedback
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