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Historically, terriers were common civilian dogs that lived in the British Isles. In 55 BC, the Elder Perini said that the Romans had found a puppy there that would follow prey all the way to the bottom. In Britain, when large prey is exterminated and the hunt is basically gone, these animals are rarely seen on the island. But people's enthusiasm for hunting has always been there, and they can only turn their attention to small prey. Small dogs entered the hunter's sight and became excellent hunters for rodents and burrowing animals, so small dog hunting activities swept the country.

During the colonial period, terriers traveled the world with fleets. The reason why the terrier has a white coat is both a kind of self-preservation and to deal with foxes. When terriers crawl out of the pit, they are often covered in mud and are attacked by mistake for prey. In order to avoid such misunderstandings, people combined terriers with foxhounds to produce fox terriers with white hairs.
The fur of the fox terrier has a thick and rough texture, which is divided into two varieties: curly hair and short hair, and there are differences in the personality of different varieties. Curly-haired varieties are cautious, agile and easily excited, while short-haired varieties are energetic, lively and cheerful. Both have stamina, staying power, and speed.
The head of the fox terrier is flat and slightly narrower, gradually converging toward the eyes. The eyes and orbits are dark in color, small, deep in position, nearly circular in shape, and full of enthusiasm, liveliness and intelligence. The ears are V-shaped, small, medium-thickness, and hang forward on the sides of the cheeks, rather than on the sides of the head like foxhounds. The neck is neat and muscular, the throat is free of extra flesh, normal length, and gradually widens near the shoulders. The back is relatively short, the dorsal line is horizontal, and the shape is strong and does not appear loose. The thorax is deep but not wide, and the lower half of the chest is deep but not exaggerated. The front half of the ribs are moderately rounded arches, the back half of the ribs are deep and healthy, and the ribs are well dilated. The waist is very strong, muscular, with a very slight upper arch. The tail is slightly higher and happily held, but not curled. The forelimbs are straight, the bones are strong and powerful, the hind legs are long and powerful, the posterior knee joints are angled appropriately, not inward or outward, and the flying joints are at an appropriate angle to the thighs, very low. The coat is silky, flat, not hard, thick and rich. The abdomen and lower thighs should not be exposed. It is usually white with markings on it; however, tabby, red, or liver-colored markings are not popular.
The Fox Terrier is a deeply affectionate family dog with strong protective abilities that must be trained to suppress its hunting instincts. In the hunting grounds of rats and burrowers that dominated them more than a hundred years ago, they are already outstanding family dogs. This dog is social, warm-hearted, loyal to the family, and praised for his dedication to the guards.