An extremely wide variety of animals have been kept as pets (at least in rare instances) or as farm stock. Below is a list of some animals that are kept in captivity at home and are considered a little or extremely 'exotic'. Where examples are provided within a category, the examples are the animals that are relatively commonly kept as pets in captivity at home within that category (although such animals as goldfish, mice, and parakeets may not really be considered very 'exotic'). The Convention on the International Trade in Endangered Species of Wild Flora and Fauna, or CITES, moderates the trade of some exotic pets around the world, to prevent any threats to their survival and ecological damage. Certain animals may be strictly regulated or restricted outright due to both their conservation status, as well as the possibility of the animal becoming an invasive species.
The USDA issues permits for keeping and breeding certain exotic species, whether captured from the wild or bred. In the United States, for example, it is illegal to import primates for the pet trade, but animals bred in captivity exist in the trade, using animals descended from those brought in legally before the ban was enacted. As of September 2014, most US states forbid or regulate the possession of exotic pets, but 5 states have no license or permit requirements. In 2003, the US Captive Wild Animal Safety Act (CWASA) became law, and in September 2007 the US Fish and Wildlife Service enacted rules to enforce it. The law bans the sale or transport of big cats across state lines for the pet trade, and applies to cheetahs, cougars, jaguars, leopards, clouded leopards, snow leopards, lions, tigers, and their hybrids. Veterinary costs for treatment of exotic animals may be significantly higher than for a more conventional pet, owing to the increased specialization required. Zoonotic disease is known to occur in a small number of exotic pets. The American Veterinary Medical Association, the U.S. Department of Agriculture, the National Animal Control Association, the American Zoo and Aquarium Association and the CDC all discourage the private ownership of certain exotic animals. Animals that are captive-bred in the United States have no risk of contracting any harmful disease as they are not exposed to it in any way.
Exotic animals retain their unpredictable wild nature, with some being physically capable of maiming or killing their owners. Mammals are the most likely exotic pets to injure or kill humans, with non-human primates topping the list. ven if they are bred for the pet trade and raised by humans, they may be unpredictable, relatively resistant to training; in some cases, especially as full-grown adults, they can be dangerous. Injuries to humans may be relatively common, but reported yearly deaths due to exotic pet ownership are rare. Statistics compiled by an advocacy organization] indicate a yearly average of less than 3.5 fatalities per year in the United States and another lists 87 exotic animal incidents resulting in human death from June 20, 1990 to April 15, 2016.