Gray is a dog, and the specific breed cannot be determined. Dogs can be identified according to their appearance, body shape, hair, color and other characteristics, but it is impossible to determine their breeds by only one name. Grey grey may be just a lovely name given to it by the pet owner, not its real breed name. If you have photos or more detailed information, you can judge its variety more accurately. At the same time, remind pet owners that when choosing a pet, they must understand the characteristics of the variety, such as the required diet, body shape, exercise and training. In order to take better care of their health and happiness.