Well, the biggest difference is raccoons are eutherian mammals, and opossums are metatherian mammals. Metatherian mammals diverged from the greater family of mammals about 125 million years ago. More simply, raccoons are placental mammals, opossums are marsupials. read more
Raccoon vs Possum . Raccoon and possum are two different types of animals living in two distinct lands exhibiting many important distinctions between them. Therefore, it would be of some interest, to discuss their characteristics. read more
A raccoon is more related to canines and bears, while an Opossum is related to Koalas and Kangaroos and Brushtails. The raccoon is about the size of a cat, with dark mask over its eyes, and pointy ears, while the Opossum is the same size, but looks like a large grey, fuzzy rat, with a pink nose, a white face, and rounded ears like a mouse. read more