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The common opossum (Didelphis marsupialis), also called the southern or black-eared opossum [2] or gambá, and sometimes called a possum, is a marsupial species living from the northeast of Mexico to Bolivia (reaching the coast of the South Pacific Ocean to the central coast of Peru), including Trinidad and Tobago and the Windwards in the Caribbean, [2] where it is called manicou. [3]
As marsupials, female opossums have a reproductive system that includes a bifurcated vagina and a divided uterus; many have a pouch. [29] The average estrous cycle of the Virginia opossum is about 28 days. [30] Opossums do possess a placenta, [31] but it is short-lived, simple in structure, and, unlike that of placental mammals, not fully ...
They also have hairless ears and a long, flat nose. Opossums have 50 teeth, more than any other North American land mammal, [15] and opposable, clawless thumbs on their rear limbs. Opossums have 13 nipples, arranged in a circle of 12 with one in the middle. [16] [17] The dental formula of an opossum is 5.1.3.4 4.1.3.4. [18]
The forepaws of M. mexicana have remarkable manipulative powers. It uses this ability to burrow in the ground. The burrow can be 30 mm in diameter and 40 cm in length. The mouse-opossum then fills the burrow with leaves to create a nest. More commonly it creates nests in trees, especially in abandoned bird nests.
The brown four-eyed opossum (Metachirus nudicaudatus) is a pouchless marsupial [3] of the family Didelphidae.It is found in different forested habitats of Central and South America, [2] from Nicaragua to Brazil and northern Argentina, [1] including southeastern Colombia, Paraguay and eastern Peru and Bolivia, at elevations from sea level to 1,500 m (4,900 ft). [2]
The gray four-eyed opossum has an omnivorous diet containing fruits, nectar, insects, small mammals (such as mice), birds, reptiles, amphibians, crustaceans, snails, and earthworms. [6] Its diet varies depending on the season. [6] With such a varied diet, the gray four-eyed opossum will both encounter and eat venomous snakes.
Opossums have many interesting features and their 50 teeth are definitely one of them. That’s more than any North American land mammal! They have a natural tolerance for snake venom and eat ...
It is a large dark gray opossum. Dorsal fur is dark gray, and the fur on the sides is also gray, but lighter than the dorsal fur. The ventral fur is white or cream-colored. The hairs on the throat have gray bases, but are divided in two by a cream-colored vertical stripe going along the midline of the throat. Its fur is short.