The Virginia opossum (Didelphis virginiana), commonly known as the North American opossum, is a marsupial found in North America. It is the only marsupial found north of Mexico. In the United States, it is typically referred to simply as a possum. It is a solitary and nocturnal animal about the size of a domestic cat. It is a successful opportunist. It is familiar to many North Americans as it is often seen near towns, rummaging through...