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 How Do Chameleons Change Color? Twenty Amazing Science Facts About Animals Amazing Facts About Whales 15 plants that eat animals Why Do Venomous Animals Live In Warm Climates?