Scottish shepherd: a canine belonging to the animal kingdom. The Scottish shepherd dog originated in the lowlands of Scotland. Its name comes from a local black sheep named Collie, also known as Collie Dog, which is produced in England. The Scottish shepherd is a spiritual dog star.

Border collie: Originally from the border of Scotland, it is a kind of collie collie. It has a strong herd instinct, intelligent nature, is good at reading minds, and can really understand its master's instructions. It has been regarded as a sheepdog for many years.

The difference between Su Mu and border grazing:

Border grazing is smaller than Su Mu, and Su Mu has more wool. The excitement of border grazing is low, in contrast, Su Mu is more docile and honest; Bian Mu's IQ is higher than Su Mu's and he is obedient. Border grazing is dominated by black and white, while Su Mu is dominated by orange and white.