Didelphis Marsupialis is commonly known as the common opossum or the southern opossum. It is a nocturnal marsupial animal that lives in the Americas. There are a few synonyms for Didelphis Marsupialis that are used interchangeably. Some of these synonyms include the Virginia opossum, possum, and the American opossum. These animals have a distinct appearance with their long tail, pointed snout, and gray or brown fur. They are known for their ability to play dead when threatened by predators. While they may not be the most popular animal, Didelphis Marsupialis plays an important role in the ecosystem by controlling the population of insects and small animals.