Similarities are attracted to each other. This works for humans and for dogs as well. When this dog sees the “mini me” version of itself, all his attention is captured with it and she is not able to think of anything else. Huge dog sees a small puppy and she looks exactly like her! Big dog is very curious about the baby. The puppy can barely reach her tail, she is so little!
The antics of tiny puppy make the older dog excited. She wants to play with a baby that is just overwhelmed with such attention. The gentle nature of big dog does not comply with her huge size, when we suddenly discover the playfulness of little puppy in a big pup.