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Why Do Dogs Sniff Butts?

If you own a dog, then you see it all the time. Dogs sniff other dogs’ butts. Some pet owners don’t mind it while others try to prevent their dogs from doing it.

So what’s the deal, why do dogs sniff butts?

Dogs gather a great deal of information about their surroundings through their nose. Dogs’ noses have anywhere from 125 million to 300 million scent receptors (compare that to a human’s 5 million) and the percentage of their brain devoted to analyzing smells is 40 times larger than that of a human.

Dogs sniff others’ behinds to learn about the other dog. From a little sniff, they can learn what types of food the other dog has eaten recently, its general health, emotional state, the aggression level of another dog, and whether a female is pregnant.

While it may seem gross to us, this is simply how dogs get to know each other and gain information about another dog.

Have any thoughts on this topic? Share them with us by leaving a comment!

About Stacy @Trupanion

Stacy Kowalchuk is a dog mom to her rescued Whippet-mix, Ellie. During the week, you can find Stacy surfing (the internet, that is) and managing Trupanion's presence in the social media world. In her free time, Stacy likes to bake, especially cupcakes! To balance her culinary affinity, she also likes to stay active, especially with activities that include her dog such as hiking and going to dog parks.

4 Responses to Why Do Dogs Sniff Butts?

  1. Heather says:

    It’s pretty funny how much information a dog can gain from a simple sniff. I always allow and even encourage my dogs to sniff other dogs because they are always calmer with the other dog after doing so.

  2. Rachel says:

    I keep trying it myself but it just wont work for me… guess it’s a dog thing

  3. John Reyes says:

    My dogs are always barking at other dogs but it with a good sniffin it usually stops… ;lol 😉

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