s Medium Breed (21-50 pounds / 10-23 kg)
Medium-sized breeds typically have a lifespan of 10-15 years. They generally have a more balanced growth and aging pattern compared to small and large breeds.

Beagle
The Beagle is a breed of small scent hound, similar in appearance to the much larger foxhound.

Border Collie
The Border Collie is a working and herding dog breed developed in the Anglo-Scottish border region.

Bulldog
The Bulldog is a British breed of dog of mastiff type with a wrinkled face and distinctive pushed-in nose.

Cocker Spaniel
The Cocker Spaniel is a breed of gun dog that originated in the United Kingdom.

Australian Shepherd
The Australian Shepherd is a breed of herding dog from the United States, developed for herding livestock.

Boxer
The Boxer is a medium to large, short-haired breed of dog, developed in Germany. The coat is smooth and tight-fitting; colors are fawn or brindled, with or without white markings.

Siberian Husky
The Siberian Husky is a medium-sized working dog breed. The breed belongs to the Spitz genetic family. It is recognizable by its thickly furred double coat, erect triangular ears, and distinctive markings.

Dalmatian
The Dalmatian is a breed of medium-sized dog, noted for its unique white coat marked with black or liver-colored spots. Originating as a hunting dog, it was also used as a carriage dog in its early days.

Samoyed
The Samoyed is a breed of medium-sized herding dogs with thick, white, double-layer coats. They are related to the laika, a spitz-type dog.

Chow Chow
The Chow Chow is a dog breed originally from northern China. The Chow Chow is a sturdily built dog, square in profile, with a broad skull and small, triangular, erect ears with rounded tips.

Basset Hound
The Basset Hound is a short-legged breed of dog in the hound family. The Basset is a scent hound that was originally bred for the purpose of hunting hare.

Shar Pei
The Shar Pei is a breed of dog known for its deep wrinkles, blue-black tongue and very short, rough coat. The breed originates from Guangdong province of China.

Bull Terrier
The Bull Terrier is a breed of dog in the terrier family. There is also a miniature version of this breed which is officially known as the Miniature Bull Terrier.

Whippet
The Whippet is a dog breed of medium size. They are a sighthound breed that originated in England, where they descended from greyhounds.

Alaskan Malamute
The Alaskan Malamute is a large breed of dog that was originally bred for their strength and endurance to haul heavy freight as a sled dog and hound.

English Setter
The English Setter is a medium size breed of dog. It is part of the setter group, which includes the red Irish Setters, Irish Red and White Setters, and black-and-tan Gordon Setters.

Vizsla
The Vizsla is a dog breed originating in Hungary. The Hungarian or Magyar Vizsla represents one of the best in sporting dogs and loyal companions.

Weimaraner
The Weimaraner is a large dog that was originally bred for hunting in the early 19th century. Early Weimaraners were used by royalty for hunting large game such as boar, bear, and deer.

Collie
The Collie is a distinctive type of herding dog, including many related landraces and standardized breeds. The breed originated in Scotland and Northern England.

Standard Schnauzer
The Standard Schnauzer is a breed of dog, the medium-sized version of the Schnauzer type that originated in Germany around the 15th to 16th centuries.