The opossum is the only native marsupial in North America and makes up the largest order of marsupials in the Western Hemisphere with over 100 different species. Opossums have greyish-white fur with a hairless tail. Opossums are solitary, nocturnal creatures that are known for “playing dead” when threatened. They are very strong climbers and swimmers. Opossums are scavengers and will basically eat about anything from berries, mice, ticks, and garbage.