There are two recognized types of corgi. One is the Pembroke Welsh corgi, and the other is the Cardigan Welsh corgi. Both dogs were bred in Wales to drive cattle. The Cardigan is a much older breed than the Pembroke, having been brought to Wales by the Celts as early as 1200 B.C. The Pembroke has only been around since the 12th century.
The Cardigan has a long, fox-like tail and ears that are larger and more widely spaced than the Pembroke. The Pembroke has more of a vulpine look about it, with medium-sized, erect ears, a tapering muzzle and round, brown eyes. Its tail is short.
The Pembroke is also a smaller dog than the Cardigan. Both males and females stand approximately 10 to 12 inches at the shoulder but females weigh slightly less. Males weigh between 25 and 30 pounds, while females weigh between 24 and 28 pounds. Cardigans are just slightly taller. Both types corgis live between 12 and 15 years.
The backs of corgis are no longer than those of other dogs. Since their legs are so short, the backs look disproportionately long. They were bred to be low to the ground so they could nip the legs of recalcitrant cattle.