Why Do Dogs Lick Each Others Mouths?

Why does my dog always lick other dogs mouths?

Licking other dogs’ mouths is behavior that comes from early puppyhood, when puppies used to lick their mother’s lips. The behavior was meant to encourage the mother dog to regurgitate food for them. … A dog may lick another dog’s mouth after playing rough to communicate peaceful intent or to offer an apology.

Why does my younger dog lick older dogs face?

Most puppies are born with the tendency to want to lick older dogs’ mouths. It is rarely used for inducing regurgitation in dogs – most frequently it is an appeasement signal. A young puppy might for example lick an older dog’s mouth when he comes in from outside or enters a room the puppy is in.