The ideal height for a male Jack Russell Terrier should be 14 inches at the withers. The ideal adult female dog should be 13 inches tall at the withers. The appearance of the Jack Russell Terrier is very similar to the Chinese Pastoral Dog. For people who have never known the Jack Russell Terrier, it is difficult to tell that it is a breed of dog. So in order to better identify it, we must know the corresponding morphological characteristics of pet dogs.

Jack Russell Terrier

​Head

The expression is enthusiastic, straightforward, energetic and intelligent.

Eyes are almond-shaped, dark in color, medium in size and not prominent. The eye rims are dark in color.

Button ears, flat skull, fairly wide between ears, gradually narrowing toward the eyes. The stop is well defined but not prominent. The upper and lower jaws are perfect and very powerful.

The nose is black and fully pigmented.

The teeth are large and close together, forming a perfect scissor bite.

​Body

The neck is clean and muscular, slightly arched, of medium length, gradually broadening towards the shoulders. The topline is strong and straight, with a slightly arched loin.

Body - Body length is proportional to shoulder height, approximately square, and well proportioned. Chest narrow and of medium depth, strong without being heavy, pliable and compact. The ribs are healthy and should not reach the elbow depth. The tail is set high.

​limbs

.The shoulders are long and sloping, integrating well into the back. The feet are round, similar to cat's claws, very compact, and the pads are thick and hard. The toes are moderately arched, neither turning in nor out.

Hindquarters are strong and muscular, smooth, with plenty of bone, stifles well angled, and hock joints close to the ground and perpendicular to each other to provide propulsion during action. The feet are the same as the forelimbs.

The flat hair is thick and hard and can withstand harsh weather. Flat but strong, thick, abundantly coated, belly and lower thighs not exposed. Coarse hair is rough and resistant to harsh weather conditions. Short and dense undercoat, thick, straight coat tightly wrapped around the body and legs.

Except for eyebrows and beard, the entire outline is clear. The abdomen and lower thighs are not exposed. Color White with black or brown markings, or a combination of all three colors.

Bathing knowledge

Dogs’ fur gets dirty easily and requires regular bathing. Generally, it is done once a week in summer and once every two weeks in winter. When it is dirty, just wipe it with a wet towel. Use warm water for bathing, not cold water. Use pet shampoo instead of human shampoo or soap. Wash well with a cleanser. Plug your ears with cotton when taking a bath to prevent water from entering your ears and causing ear infections.Tract inflammation. Put the shampoo into the water and mix well, then put the dog into the water to bathe. After taking a bath, use a dry towel to absorb the moisture on the coat, and then comb it while blow-drying it with an electric blow dryer. Do not let it dry in the sun or dry naturally, as this can easily make your dog sick. Pay attention to drying the undercoat, focusing on the neck, armpits, groin, and between the fingers of the limbs, otherwise skin diseases will easily occur.

Before understanding the necessity of bathing dogs, we first understand the structure and physiological characteristics of dog skin. Dog skin is less resistant to external stimuli than humans. Human skin has 10-15 epidermal layers and a pH of 5.5. (slightly acidic), with sweat glands, while dog skin has only 3-5 layers of epidermis, PH7.5 (neutral), short skin metabolism cycle, and no sweat glands. These determine that no matter how good human shampoo is, it is not suitable for dogs. Bathing too often and not blow-drying thoroughly can easily damage the sebaceous glands, make the coat rough and dull, and easily lead to skin diseases. Some owners love hygiene so much that they bathe their dogs multiple times a day or a week, which is obviously wrong. In addition, the hygiene of the dog's lips and face cannot be ignored and should be washed with a towel after eating. Don’t forget to clean the anus and urethra area.