Virginia opossum, the only marsupial (family Didelphidae, subfamily The size of a house cat, males average about 3 kg ( pounds), females about 2 kg ( is the only tooth that is replaced (that is, preceded by a milk tooth) in the adult.
The Virginia opossum is the only marsupial native to North America. Adult opossums are too heavy to support their body weight with the tail.
The Virginia opossum (Didelphis virginiana), commonly known as the North American opossum, is the only marsupial found north of Mexico. In the United States, the animal is typically referred to simply as a possum. It is a solitary and nocturnal animal about the size of a domestic cat. . Individual adult tracks generally measure in long by in wide ( ×