Guinea pig adjunct to the American Rabbit Breeders' Association, is the governing body in the United States and Canada. The British Cavy Council governs cavy clubs in the United Kingdom. Similar organizations exist in Australia (Australian National Cavy Council) and New Zealand (New Zealand Cavy Council). Each club publishes its own standard of perfection and determines which breeds are eligible for showing. Allergic symptoms, including rhinitis, conjunctivitis, and asthma, have been documented in laboratory animal workers who come into contact with guinea pigs. Allergic reactions following direct exposure to guinea pigs in domestic settings have also been reported. Two major guinea pig
Spix's yellow-toothed cavy male approaches females in order to mate, it competes aggressively with other males. Spix's yellow-toothed cavy Spix's yellow-toothed cavy, "Galea spixii", is a rodent, a cavy species from South America. It is found in Bolivia east of the Andes and much of south central to northeastern Brazil. The species is found in open savanna and semiarid habitats, such as the Cerrado and Caatinga of Brazil. Its karyotype is 2n = 64 and FN = 118. "Galea spixii" and "G. musteloides" are similar and may actually be the same species. "G. spixii" tolerates a wide range of environmental changes, though they