Why does one dog sniff anothers butt?

Answer 1

because they eat bannanas!

I'm sorry... but whoever did that i automatically classify as annoying. But anyhoo, dogs sniff each other to get eachothers scent and sometimes they're mood. Also, if it is a female in estrus, all the more reason for a male dog to sniff.

Answer 2

Dogs often sniff each other's hind (not always) because that is their way of meeting each other and debating if the other dog is:

male or female

in heat

pregnant

hostile or not

if it is a threat to it's properties (turf) owner/family, or itself or baby (or if it's pregnant)

It's like a dog's hand shake.

To get to know each other, size them up, to remember. Like people remember names or faces of people they meet, dogs use their nose more than their eyes to greet of know from friend, foe or stranger.

Answer 3

In short, it is their way of greeting. When a puppy is born he/she has two senses, touch and scent. It is impolite (in the dog world) for a dog to greet another with touch (pawing, biting, rubbing (like cats), etc.), so they rely on their second sense, scent. The scent of any animal is strongest in the rear... so that is where dogs sniff. It is also how they know the health of another dog.

Answer 4

It's their way of showing that they care for each other's health.

Answer 5

Each dog has a different story in their butts. One sniff gives the other dog a lot of information about the other, like where it's been peeing, where it lives, and what not.

Answer 6

It is a simple way of a human handshake for dogs and they can tell what the other dogs territory is and if the dog is on they're side or not.

Answer 7

Most dogs have scent as their primary sense as opposed to sight like humans have. When they smell each other like that, it is like when humans get a good look as someones face.