Why does a 6 year old GSD Bitch often mount 5 year old GSD Male?

Q            My six-year-old spayed German Shepherd bitch often mounts my entire male Shepherd, who is a year younger. She shows no aggression, but why does she do this?   A            Quite simply she is asserting herself over the dog. By placing her paws on the dog, she is sending a message that she is dominant […]