Beagle

The Beagle has an even temper and gentle disposition. Described in several breed standards as "merry", they are amiable and generally neither aggressive nor timid. They enjoy company, and although they may initially be standoffish with strangers, they are easily won over. They make poor guard dogs for this reason, although their tendency to bark or howl when confronted with the unfamiliar makes them good watch dogs.

Beagles are intelligent, but as a result of being bred for the long chase are single-minded and determined, which can make them hard to train. They are generally obedient but can be difficult to recall once they have picked up a scent and are easily distracted by smells around them. They do not generally feature in obedience trials; while they are alert, respond well to food-reward training, and are eager to please, they are easily bored or distracted.

Beagles are excellent with children and this is one of the reasons they have become popular family pets, but they are pack animals, and can be prone to separation anxiety. Not all Beagles will howl, but most will bark when confronted with strange situations, and some will bay (also referred to as "speaking", "giving tongue", or "opening") when they catch the scent of potential quarry. They also generally get along well with other dogs. They are not demanding with regard to exercise; their inbred stamina means they do not easily tire when exercised, but they also do not need to be worked to exhaustion before they will rest, though regular exercise helps ward off the weight gain to which the breed is prone.

The Beagle is a breed of small to medium-sized dog. A member of the Hound Group, it is similar in appearance to the Foxhound but smaller, with shorter legs and longer, softer ears. Beagles are scent hounds, developed primarily for tracking hare, rabbit. and other game. They have a keen sense of smell and tracking instinct that sees them employed as detection dogs for prohibited agricultural imports and foodstuffs in quarantine around the world. They are popular as pets because of their size, even temper, and lack of inherited health problems.

They are generally between 13 and 16 inches (33 and 41 cm) high at the withers and weigh between 18 and 35 lb (8 and 16 kg), with females being slightly smaller than males on average.
They have a smooth, somewhat domed skull with a medium-length, square-cut muzzle and a black (or occasionally liver), gumdrop nose. The jaw is strong and the teeth scissor together with the upper teeth fitting perfectly over the lower teeth and both sets aligned square to the jaw. The eyes are large, hazel or brown, with a mild hound-like pleading look.

The large ears are long, soft and low-set, turning towards the cheeks slightly and rounded at the tips. Beagles have a strong, medium-length neck (which is long enough for them to easily bend to the ground to pick up a scent), with little folding in the skin but some evidence of a dewlap; a broad chest narrowing to a tapered abdomen and waist and a short, slightly curved tail tipped with white. The white tip, known as the "stern" or "flag" has been selectively bred for, as it allows the dog to be easily seen when its head is down following a scent. The tail does not curl over the back, but is held upright when the dog is active. The Beagle has a muscular body and a medium-length, smooth, hard coat. The front legs are straight and carried under the body while the rear legs are muscular and well bent at the stifles.

Beagles appear in a range of colours. Although the tricolour (white with large black areas and light brown shading) is the most common, Beagles can occur in any hound colour. Tricoloured dogs occur in a number of shades, from the "Classic Tri" with a jet black saddle (also known as "Blackback"), to the "Dark Tri" (where faint brown markings are intermingled with more prominent black markings), to the "Faded Tri" (where faint black markings are intermingled with more prominent brown markings). Some tricoloured dogs have a broken pattern, sometimes referred to as pied. These dogs have mostly white coats with patches of black and brown hair. Tricolour Beagles are almost always born black and white. The white areas are typically set by eight weeks, but the black areas may fade to brown as the puppy matures. (The brown may take between one and two years to fully develop.) Some Beagles gradually change colour during their lives, and may lose their black markings entirely.

Two-colour varieties always have a white base colour with areas of the second colour. Tan and white is the most common two-colour variety, but there is a wide range of other colours including lemon, a very light tan; red, a reddish, almost orange, brown; and liver, a darker brown, and black. Liver is not common and is not permitted in some standards; it tends to occur with yellow eyes. Ticked or mottled varieties may be either white or black with different coloured flecks (ticking), such as the blue-mottled or bluetick Beagle, which has spots that appear to be a midnight-blue colour, similar to the colouring of the Bluetick Coonhound. Some tricolour Beagles also have ticking of various colours in their white areas.

Alongside the Bloodhound, the Beagle has one of the best developed senses of smell of any dog. In the 1950s, John Paul Scott and John Fuller began a 13 year study into canine behaviour. As part of this research, they tested the scenting abilities of various breeds by putting a mouse in a one acre field and timing how long it took the dogs to find it. The Beagles found it in less than a minute, while Fox Terriers took 15 minutes and Scottish Terriers failed to find it at all. Beagles are better at ground-scenting (following a trail on the ground) than they are at air-scenting, and for this reason they have been excluded from most mountain rescue teams in favour of collies, which use sight in addition to air-scenting and are more biddable. The long ears and large lips of the Beagle probably assist in trapping the scents close to the nose.

The American Kennel Club and the Canadian Kennel Club recognize two separate varieties of Beagle: the 13-inch (330 mm) for hounds less than 13 inches (33 cm), and the 15-inch (380 mm) for those between 13 and 15 inches (33 and 38 cm). The Kennel Club (UK) and FCI affiliated clubs recognize a single type, with a height of between 13 and 16 inches (33 and 41 cm).
English and American varieties are sometimes mentioned. However, there is no official recognition from any Kennel Club for this distinction. Beagles fitting the American Kennel Club standard—which disallows animals over 15 inches (38 cm)—are smaller on average than those fitting the Kennel Club standard which allows heights up to 16 inches (41 cm).

Pocket Beagles are sometimes advertised for sale but the bloodline for this variety is extinct, and, although the UK Kennel Club originally specified a standard for the Pocket Beagle in 1901, the variety is not now recognised by any Kennel Club. Often, small Beagles are the result of poor breeding or dwarfism.

The median longevity of Beagles is about 12 years, which is a typical lifespan for a dog of their size. Weight gain can be a problem in older or sedentary dogs, which in turn can lead to heart and joint problems. Beagles may be prone to epilepsy, but this can be controlled with medication. Hypothyroidism and a number of types of dwarfism occur in Beagles. Two conditions in particular are unique to the breed: Funny Puppy, in which the puppy is slow to develop and eventually develops weak legs, a crooked back and although normally healthy, is prone to range of illnesses; Hip dysplasia, common in Harriers and in some larger breeds, is rarely considered a problem in Beagles. Beagles are considered a chondrodystrophic breed, meaning that they are prone to types of disk diseases.

In rare cases, Beagles may develop immune mediated polygenic arthritis (where the immune system attacks the joints) even at a young age. The symptoms can sometimes be relieved by steroid treatments. Their long floppy ears can mean that the inner ear does not receive a substantial air flow or that moist air becomes trapped, and this can lead to ear infections. Beagles may also be affected by a range of eye problems; two common ophthalmic conditions in Beagles are glaucoma and corneal dystrophy. "Cherry eye", a prolapse of the gland of the third eyelid, and distichiasis, a condition in which eyelashes grow into the eye causing irritation, sometimes exist; both these conditions can be corrected with surgery. They can suffer from several types of retinal atrophy. Failure of the nasolacrimal drainage system can cause dry eye or leakage of tears onto the face.

As field dogs they are prone to minor injuries such as cuts and sprains, and, if inactive, obesity is a common problem as they will eat whenever food is available and rely on their owners to regulate their weight. When working or running free they are also likely to pick up parasites such as fleas, ticks, harvest mites and tapeworms, and irritants such as grass seeds can become trapped in their eyes, soft ears or paws. Beagles may exhibit a behaviour known as reverse sneezing, in which they sound as if they are choking or gasping for breath, but are actually drawing air in through the mouth and nose. The exact cause of this behaviour is not known, but it is not harmful to the dog.