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Litter Size

How many babies does a Hylaeamys megacephalus have at once? (litter size)

How many baby Hylaeamys megacephaluss are in a litter?

A Hylaeamys megacephalus (Oryzomys megacephalus) usually gives birth to around 3 babies.With 6 litters per year, that sums up to a yearly offspring of 18 babies.

Each of those little ones spend around 27 days as a fetus before they are released into the wild. Upon birth, they weight 3 grams (0.01 lbs) and measure 2.9 cm (0′ 2″). They are a member of the Cricetidae family (genus: Oryzomys). An adult Hylaeamys megacephalus grows up to a size of 12.2 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.

Hylaeamys megacephalus, also known as Azara’s broad-headed oryzomys or the large-headed rice rat, is a species of rodent in the genus Hylaeamys of family Cricetidae, of which it is the type species. It is found mainly in lowland tropical rainforest from its type locality in Paraguay north through central Brazil, French Guiana, Guyana, Suriname, and Venezuela onto Trinidad and Tobago. To its west and east, other closely related species of Hylaeamys are found: H. perenensis in western Amazonia, H. acritus in Bolivia, and H. laticeps and H. oniscus in the Atlantic Forest of eastern Brazil.It was first described by Spanish naturalist Félix de Azara. Based on his description, several names were given to the animal, including Mus megacephalus Fischer, 1814 and Mus capito Olfers, 1818, both of which were largely forgotten for over a century. When capito was rediscovered in 1960, it came in use (as Oryzomys capito) for a “species” that included about all species now placed in Euryoryzomys, Hylaeamys and Transandinomys. Later, its scope was restricted, most definitively in a detailed study in 1998 by Guy Musser and coworkers, who also reinstated the older name Mus megacephalus (as Oryzomys megacephalus). In subsequent years, the western Amazonian H. perenensis was reinstated as a species and both were moved to the new genus Hylaeamys, because they are not closely related to the type species of Oryzomys.

Other animals of the family Cricetidae

Hylaeamys megacephalus is a member of the Cricetidae, as are these animals:

Animals that share a litter size with Hylaeamys megacephalus

Those animals also give birth to 3 babies at once:

Animals that get as old as a Hylaeamys megacephalus

Other animals that usually reach the age of 3.75 years:

Animals with the same weight as a Hylaeamys megacephalus

What other animals weight around 57 grams (0.13 lbs)?

Animals with the same size as a Hylaeamys megacephalus

Also reaching around 12.2 cm (0′ 5″) in size do these animals: