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The largest difference between the opossum and non-marsupial mammals is the bifurcated penis of the male and bifurcated vagina of the female (the source of the term didelphimorph, from the Greek didelphys, meaning "double-wombed"). [38] Opossum spermatozoa exhibit sperm-pairing, forming conjugate pairs in the epididymis.
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]
When injured or threatened (e.g., by a dog), the Virginia opossum is known to feign death or "play possum". If threatened, an opossum will either flee or take a stand. To appear threatening, an opossum will first bare its 50 teeth, snap its jaw, hiss, drool, and stand its fur on end to look bigger. [21]
Virginia opossum, native to North America; White-eared opossum, native to South America; Phalangeriformes, also called (o)possums, any of a number of arboreal marsupial species native to Australia, New Guinea, and Sulawesi Common brushtail possum (Trichosurus vulpecula), a common possum in Australian urban areas, invasive in New Zealand
The common ringtail possum (Pseudocheirus peregrinus, Greek for "false hand" and Latin for "pilgrim" or "alien") is an Australian marsupial. It lives in a variety of habitats and eats a variety of leaves of both native and introduced plants, as well as flowers, fruits and sap.
The species are commonly known as possums, opossums, [3] gliders, and cuscus. The common name "(o)possum" for various Phalangeriformes species derives from the creatures' resemblance to the opossums of the Americas (the term comes from Powhatan language aposoum "white animal", from Proto-Algonquian * wa·p-aʔɬemwa "white dog"). [ 4 ]
Gray short-tailed opossums are relatively small animals, with a superficial resemblance to voles.In the wild they have head-body length of 12 to 18 cm (4.7 to 7.1 in) and weigh 58 to 95 grams (2.0 to 3.4 oz); males are larger than females. [5]
Raw feeding is the practice of feeding domestic dogs, cats, and other animals a diet consisting primarily of uncooked meat, edible bones, and organs. The ingredients used to formulate raw diets vary. Some pet owners choose to make home-made raw diets to feed their animals but commercial raw diets are also available.