The Rat-Cha is a crossbreed between the purebred American Rat Terrier and Chihuahua. This designer dog has high energy and is very loving toward its family. The Rat-Cha, which may also go by Rat-Chi, is frisky and can be overprotective of its people. Owners can prevent aggressive or undesirable protective traits by early socialization with people, places, and other dogs. The Rat-Char tends to bond with a single person in the family and will spend much of its time on that person's lap.
The Rat-Cha is a popular designer breed due to the high popularity of both parent breeds. Despite its popularity, detailed accounts of its breeding programs and history are not available. This is most likely due to the recent hybridization of both parent breeds and the number of variations that can be present in the Rat-Cha offspring. Owners who wish to understand the histories and potential traits of their Rat-Cha can review those of both parents for insight. The American Rat Terrier is an American breed long in the making. The breeding program included several other well-established breeds, such as the Manchester Terrier, Bull Terrier, Old English White Terrier, and the Fox Terrier. The purpose of the breed programs was to produce a small Terrier type that was a tenacious ratting dog, and that could get in tight places. Despite its late recognition by the American Kennel Club in 2013, the American Rat Terrier has been long bred in the United States. A Rat Terrier appeared alongside Shirley Temple in The Little Colonel and was the Terrier of choice of President Theodore Roosevelt who wanted a rat dog to handle the White House rat problem. The Rat Terrier varied in the United States depending on the region it was from as well. In the south, the Rat Terrier was crossbred with the Beagle to produce a pack-minded ratting dog while the Greyhound and Whippet breeds were used in the midwest to give the Rat Terrier fleet abilities against the fast jackrabbits. The Chihuahua is also a dog of the Americas but from Mexico. Accounts of the Chihuahua, known then as Techichi, reach back as far as the 9th Century in the Mesoamerican region where the little dogs were bred as both vermin hunters and companions. The Techichi was so well loved that they were often buried alongside their masters at death. The Techichi faded into obscurity during the Spanish invasion of the Aztec State, but the small, resilient dog maintained itself in the region and was rediscovered living in the Mexican state of Chihuahua during the mid-1800s, where the breed gained its new name. Shortly after its rediscovery, the Chihuahua made its way north to the United States by the late 1800s and the American Kennel Club recognized the breed in 1904. Interest in the Chihuahua grew fast, and by the 1960s, the Chihuahua was considered one of the most popular dogs in the country. Today, the Chihuahua still enjoys a high popularity ranking in the American Kennel Club.