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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]
Short-tailed opossums have been found to use nuzzling in chemosensory and exploratory behavior for recognizing individuals of the same species. In Monodelphis domestica, nuzzling and snout-rubbing transforms odor from dry components like glandular secretions, feces, and urine, into moist naso-oral secretions that reach the vomeronasal organ to be processed chemically.
Gray short-tailed opossum. M. domestica (Wagner, 1842) Central and eastern South America: Size: 10–15 cm (4–6 in) long, plus tail [100] Habitat: Forest, shrubland, and grassland [101] Diet: Insects, fruits, and small animals [100] LC Unknown [101] Handley's short-tailed opossum. M. handleyi Solari, 2007: Central South America
The tail measures 4 to 6 centimetres (1.6 to 2.4 in). They weigh around 17 to 30 grams (0.60 to 1.06 oz). They have a conspicuous reddish head and brown rump and back. The chin, throat, groin and flanks are grayish-brown. There is a distinct central white streak on the chest and abdomen. Their paws are covered with short, light-brown hairs.
The pygmy short-tailed opossum, (Monodelphis kunsi), is an opossum species from South America. M. kunsi is a marsupial from the family Didelphidae of the order Didelphimorphia. Although it is a marsupial, it lacks the characteristic pouch that is often associated with this order. [3] It is found in Argentina, Bolivia, Brazil and Paraguay.
The largest species, the Virginia opossum (Didelphis virginiana), is the only marsupial to be found in North America, north of Mexico. The Virginia opossum has opposable toes on their two back feet. One of the synapomorphies of this genus is the hypertrophied spinous processes of the cervical vertebrae, which also interlock. As a result, this ...
Gracile mouse opossums, excluding the fat-tailed mouse opossum, in general, have a prehensile tail that is thin and very long. The tails of mouse opossums are naked. [2] Mouse opossums have ears that are, both, large and naked. [2] General opossums, including Gracilinanus species, have noses that are pointed.
The northern red-sided opossum or the Guianan short-tailed opossum, [3] Monodelphis brevicaudata, is an opossum species from South America. It is found in Bolivia , Brazil . French Guiana , Guyana , Suriname and Venezuela .