Why Do Dogs Smell Each Other's Butts?

04/26/2018 | 2m 5s | Video has closed captioning.

This week 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.

Aired: 04/26/18

Rating: NR


Problems Playing Video? | Closed Captioning