How many baby Tyler’s mouse opossums are in a litter?
A Tyler’s mouse opossum (Marmosa tyleriana) usually gives birth to around 3 babies.
Upon birth, they weight 110 grams (0.24 lbs) and measure 13.3 cm (0′ 6″). They are a member of the Didelphidae family (genus: Marmosa). An adult Tyler’s mouse opossum grows up to a size of 11.9 cm (0′ 5″).
To have a reference: Humans obviously usually have a litter size of one ;). Their babies are in the womb of their mother for 280 days (40 weeks) and reach an average size of 1.65m (5′ 5″). They weight in at 62 kg (137 lbs), which is obviously highly individual, and reach an average age of 75 years.
Tyler’s mouse opossum (Marmosa tyleriana) is a South American marsupial of the family Didelphidae. It lives in rainforests of the Guiana Highlands of southern Venezuela at elevations between 1300 and 2200 m. The species has only been found on three isolated tepuis (Auyantepui, Marahuaca and Sarisariñama). All three of these locations are in protected areas (Canaima, Duida-Marahuaca and Jaua-Sarisariñama national parks).The Latin species name refers to the habitat in which the opossum was first found, a Tyleria forest. In turn, both the genus Tyleria and the opossum’s common name refer to Sidney F. Tyler, an American historian and photographer who helped finance the 1928-29 expedition of the American Museum of Natural History to the headwaters of the Orinoco, during which the opossum was discovered.
Other animals of the family Didelphidae
Tyler’s mouse opossum is a member of the Didelphidae, as are these animals:
- Derby’s woolly opossum with 3 babies per pregnancy
- Anderson’s four-eyed opossum becoming 0.75 years old
- Gray slender opossum weighting only 54 grams
- Water opossum with 3 babies per pregnancy
- Marajó short-tailed opossum raching a size of 13.4 cm (0′ 6″)
- Robinson’s mouse opossum with 9 babies per pregnancy
- Emilia’s gracile opossum weighting only 7 grams
- Sepia short-tailed opossum weighting only 36 grams
- Pinheiro’s slender opossum raching a size of 10.2 cm (0′ 5″)
- Karimi’s fat-tailed mouse opossum raching a size of 9.5 cm (0′ 4″)
Animals that share a litter size with Tyler’s mouse opossum
Those animals also give birth to 3 babies at once:
- Namaqua dune mole-rat
- Desert cottontail
- Northern mole vole
- Blanford’s jerboa
- Swinhoe’s striped squirrel
- Bushy-tailed woodrat
- Nimba otter shrew
- Rock vole
- Heath mouse
- Small Indian civet
Animals with the same weight as a Tyler’s mouse opossum
What other animals weight around 32 grams (0.07 lbs)?
- Bushy-tailed hairy-footed gerbil weighting 35 grams
- Brazilian gracile opossum weighting 29 grams
- Hooper’s mouse weighting 35 grams
- Schreber’s yellow bat weighting 26 grams
- Rüppell’s broad-nosed bat weighting 26 grams
- Royle’s mountain vole weighting 37 grams
- Winter white dwarf hamster weighting 30 grams
- San José Island kangaroo rat weighting 38 grams
- Dusky fruit bat weighting 35 grams
- Black bonneted bat weighting 28 grams
Animals with the same size as a Tyler’s mouse opossum
Also reaching around 11.9 cm (0′ 5″) in size do these animals:
- Mountain spiny pocket mouse gets as big as 11 cm (0′ 5″)
- Aberdare mole shrew gets as big as 9.6 cm (0′ 4″)
- Yucatan deer mouse gets as big as 10 cm (0′ 4″)
- Dusky hopping mouse gets as big as 12 cm (0′ 5″)
- Small Japanese mole gets as big as 13.9 cm (0′ 6″)
- Hylaeamys megacephalus gets as big as 12.2 cm (0′ 5″)
- Yellow-rumped leaf-eared mouse gets as big as 12.1 cm (0′ 5″)
- Southern red-backed vole gets as big as 10.1 cm (0′ 4″)
- Aztec mouse gets as big as 11.2 cm (0′ 5″)
- Père David’s mole gets as big as 13.9 cm (0′ 6″)