What's the name of the old dog?

The adjective's name is Schnauzer.

Schnauzer, also known as Mini Du Binquan, is a very unique and charming dog breed. The most striking feature of Schnauzer is that Schnauzer's eyebrows and beard are white, which makes Schnauzer's face look like the image of an old man, which is also the origin of the name "old dog".

Schnauzer is a very loyal and enthusiastic dog breed. Schnauzer is very loving and loyal to his master and family members. Schnauzer is very clever and can learn and master all kinds of skills quickly. Schnauzer is an excellent and worthy dog breed. Schnauzer has won people's love for its loyalty, enthusiasm and loveliness.