The Australian Stumpy Tail Cattle Dog is a breed of Dog that originated in Australia to herd Cattle. It is similar to its cousin the Australian Cattle Dog but with several differences, the most obvious being its naturally "bobbed" tail. Due to the square body ratio to height, the breed is leggier than the ACD, and doesnt not have the heavy body mass of the ACD. This makes for a more agile dog with tremendous stamina in the fields and pastures. The Australian National Kennel Council (ANKC) is the peak body in Australia responsible for promoting excellence in breeding, showing, trialling, obedience, and other canine-related activities and the ownership of temperamentally and physically sound purebred dogs by responsible individuals across Australia. ... The Canadian Kennel Club (or C.K.C.) is the primary registry body for purebred dog pedigrees in Canada. ... The New Zealand Kennel Club is an organisation responsible for dog pedigree registration services in New Zealand. ... The United Kennel Club (or UKC) is the second oldest all-breed registry of purebred dog pedigrees in the United States and the second largest in the world. ... This Chihuahua mix and Great Dane show the wide range of dog breed sizes. ... Trinomial name Canis lupus familiaris The dog (Canis lupus familiaris) is a domestic subspecies of the wolf, a mammal of the Canidae family of the order Carnivora. ... Binomial name Bos taurus Linnaeus, 1758 Cattle (often called cows in vernacular and contemporary usage, or kye as the Scots plural of cou) are domesticated ungulates, a member of the subfamily Bovinae of the family Bovidae. ... The Australian Cattle Dog (ACD), also known as the Queensland Heeler, Blue Heeler, and Red Heeler, is a herding dog developed in Australia for controlling cattle. ...

Among the defects within this tailless breed is MLD or 'Mid Line Defects'. These include Spina Bifida (the spine is open or exposed at birth), Anal atresia (pups can be born without an anus)and cleft palet(there is a hole in the roof of the mouth).These defects are notnot that common but do occur occaisionally. These pups are culled. Other defects include deafness (in one or both ears), PRA (an inherited form of blindness that comes on gradually) and hip displasia. Occaisionally one gets the incorrect color (Chocolate or apricot). But these are cosmetic and do not affect the health or well being of the dog.