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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 ...
This is a list of mammals in Indiana. A total of 60 species are listed. A total of 60 species are listed. Species currently extirpated in the state include the black bear , gray wolf , elk , American marten , cougar , fisher , porcupine , and bison .
Compared to other mammals, including most other marsupials except dasyuromorphians, opossums have unusually short lifespans for their size and metabolic rate. [ 48 ] [ 49 ] The Virginia opossum has a maximal lifespan in the wild of only about two years. [ 50 ]
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]
Didelphis is a genus of New World marsupials. The six species in the genus Didelphis, commonly known as Large American opossums, are members of the opossum order, Didelphimorphia. The genus Didelphis is composed of cat-sized omnivorous species, which can be recognized by their prehensile tails and their tendency to feign death when cornered.
The water opossum (Chironectes minimus), also locally known as the yapok (/ ˈ j æ p ɒ k /), is a marsupial of the family Didelphidae. [3] It is the only monotypic species of its genus , Chironectes . [ 4 ]
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.
Big lutrine opossums have two breeding periods per year resulting in litters of 7–11 offspring. Like most marsupials, litters are born into a pouch and are fed via lactation until the offspring is developed enough to leave the pouch. Gestation lasts approximately two weeks and young are weaned off mother's milk at around three months.