Home > Animals & Plants > Why Do Dogs Smell Each Other’s Butt? Why Do Dogs Smell Each Other’s Butt? Animals & Plants Share on Pinterest A dog’s sense of smell is at least 10,000 times more sensitive than yours or mine; so why do they use this increased sense of picking out odors to smell each other’s butts? Share on Pinterest Related Posts 9 Weird Ways Animals Communicate 15 plants that eat animals How Can a Cheetah Runs 60 Miles/Hour? Nature’s Most Amazing Animal Superpowers Rare Yellow Cardinal Seen In Alabama