Short-tailed Opossums are a different species than what we have here in North America as wild opossums.

"Short tailed opossums (Monodelphis domestica) are from South America, and are 4-6 inches long (body only; their tail is almost as long as the body) with thick grey-brown fur. The tail is prehensile, meaning it can wrap around and hold onto things, and hairless. They are marsupials, although they do not have a pouch like most marsupials. "