Most states have specific laws governing the possession of dangerous wild animals, and the liability of landowners for injuries caused by wild animals on their property. Ferae naturae is a common law doctrine (created by judges in court opinions) meaning "animals of a wild nature or disposition," and traces its origins back to the Roman empire. Under the doctrine of ferae naturae, wild animals are presumed to be owned by no one specifically, but by the people generally.

In many states the rule of law has developed that a landowner cannot be held liable for the acts of indigenous wild animals occurring on his or her property unless the landowner has actually reduced the wild animals to possession or control, or introduced a non-indigenous animal into the area.

In Nevada, the possession of dangerous wild animals is regulated by state statutes. Nevada does not have a comprehensive state law that bans the private ownership of exotic pets, but certain animals are banned under state regulation unless the owner has obtained the necessary permits. For example, the Nevada Administrative Code (NAC) 503.110 prohibits the ownership of alligators, crocodiles, and certain species of venomous snakes without a permit. Additionally, local ordinances in various Nevada jurisdictions may impose stricter regulations on the ownership of exotic or dangerous animals. Regarding liability for injuries caused by wild animals, Nevada follows the common law doctrine of ferae naturae, which generally holds that landowners are not liable for injuries caused by wild animals native to the region unless the landowner has confined or exerted control over the animal. If a landowner introduces a non-native species that causes harm, they may be held liable under the theory of negligence or strict liability. It is important for landowners and those possessing wild animals in Nevada to be aware of both state and local regulations, and to understand their potential liability for any injuries caused by such animals.