Keeping animals in cages can be necessary to protect them from threats in the wild such as poachers, predators, and lack of access to medical care. While it is true that animals do not naturally belong in cages, cages can be a safe way to transport animals to zoos or sanctuaries without harming the animals or handlers. Cages also allow animals to receive proper veterinary care and live longer than they would in the wild, where illness may go untreated. Small domestic animal cages are especially suitable for transporting smaller pets like rats, rabbits, and hamsters.