The Catahoula Leopard Dog is an American dog breed named after Catahoula Parish, Louisiana. It became the state dog of Louisiana in 1979. It is recognized by the United Kennel Club (UKC) under the name Louisiana Catahoula Leopard Dog, and Catahoula Leopard Dog in the American Kennel Club (AKC) Foundation Stock Service. The Catahoula lineage is unknown. One theory suggests the breed originated in the mid-1700s when French settlers emigrated to what became Louisiana with Beauceron dogs. The settlers crossbreed their dogs with well-adapted swamp hunting wolf dogs owned by Native Americans in an effort to develop a better working dog. In the 1800s, breeding intensified in an effort to develop a family dog that was well-suited to work, hunt, and guard yet good with children. A concern with many breeds, hip dysplasia is dependent on the gene pool and good breeders. The Orthopedic Foundation for Animals and PennHIP can help determine whether a specific individual is prone to hip dysplasia through radiographs. According to the OFA, roughly 20% of Catahoulas develop hip dysplasia.