pet rats.
Flickr/adria.richards Personality: One of the most intelligent and social of all small animals, rats are considered some of the easiest pets to train and tame, and they tend to quickly bond with their owners. In fact, most rat owners we've spoken to compare owning a rat to owning a cat or dog in terms of companionship. Grooming: Rats are active groomers, cleaning themselves, one another, and even their humans, according to CuriosityRats.com. And it's not just a way to stay clean -- social grooming helps rats bond. Common Health Issues: Rats are more prone to certain serious illnesses than other small pets, according to Ratsauce.com. Though their lifespan is generally just two to three ...