How many baby Oryzomys couesis are in a litter?
A Oryzomys couesi (Oryzomys couesi) usually gives birth to around 3 babies.
Upon birth, they weight 3 grams (0.01 lbs) and measure 2.37 meter (7′ 10″). They are a member of the Muridae family (genus: Oryzomys). An adult Oryzomys couesi 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.
Oryzomys couesi, also known as Coues’ rice rat, is a semiaquatic rodent in the family Cricetidae occurring from southernmost Texas through Mexico and Central America into northwestern Colombia. It is usually found in wet habitats, such as marshes, but also lives in drier forests and shrublands. Weighing about 43 to 82 g (1.5 to 2.9 oz), O. couesi is a medium-sized to large rat. The coarse fur is buff to reddish above and white to buff below. The hindfeet show some specializations for life in the water, such as reduced ungual tufts of hair around the digits. It has 56 chromosomes. There is much geographic variation in size, proportions, color, and skull features. Oryzomys couesi is active during the night and builds nests of vegetation that are suspended among reeds about 1 m (3.3 ft) above the ground. It is an excellent swimmer and dives well, but can also climb in vegetation. An omnivore, it eats both plant and animal food, including seeds and insects. It breeds throughout the year; females give birth to about four young after a pregnancy of 21 to 28 days. The species may be infected by several different parasites and by two hantaviruses.The species was first described in 1877, the first of many related species from the region described until the 1910s. In 1918, Edward Alphonso Goldman consolidated most into the single species Oryzomys couesi and in 1960 Raymond Hall united this taxon with its United States relative, the marsh rice rat (O. palustris), into a single widespread species; subsequently, many related, localized species retained by Goldman were also included in this taxon. After studies of the contact zone in Texas, where O. couesi and the marsh rice rat meet, were published in 1979 and underscored the distinctness of the two, they were again regarded as separate. Since then, some of the peripheral forms of the group, such as Oryzomys antillarum from Jamaica and Oryzomys peninsulae from the Baja California Peninsula, have been reinstated as species. Nevertheless, O. couesi as currently constituted is likely a composite of several species; a 2010 study, using DNA sequence data, found evidence to recognize separate species from the Pacific and eastern sides of the distribution of O. couesi and two additional species from Panama and Costa Rica. Generally, Oryzomys couesi is common and of no conservation concern, and it is even considered a plague species in places, but some populations are threatened.
Other animals of the family Muridae
Oryzomys couesi is a member of the Muridae, as are these animals:
- Gray-tailed vole with 4 babies per pregnancy
- Osgood’s mouse weighting only 27 grams
- European hamster with 7 babies per pregnancy
- Blazed Luzon shrew-rat raching a size of 19.5 cm (0′ 8″)
- Sumichrast’s vesper rat with 2 babies per pregnancy
- Euryoryzomys lamia weighting only 60 grams
- Mahomet mouse weighting only 10 grams
- Golden hamster with 8 babies per pregnancy
- Townsend’s vole with 5 babies per pregnancy
- Anderson’s gerbil with 3 babies per pregnancy
Animals that share a litter size with Oryzomys couesi
Those animals also give birth to 3 babies at once:
- Dusky hopping mouse
- Cape golden mole
- Gray-footed chipmunk
- Plains harvest mouse
- American hog-nosed skunk
- Swinhoe’s striped squirrel
- Hoary fox
- Graphiurus hueti
- Mexican volcano mouse
Animals with the same weight as a Oryzomys couesi
What other animals weight around 69 grams (0.15 lbs)?
- Trinidad spiny pocket mouse weighting 69 grams
- Beady-eyed mouse weighting 77 grams
- Oecomys flavicans weighting 73 grams
- Mongolian gerbil weighting 57 grams
- Dormouse tufted-tailed rat weighting 69 grams
- Gansu pika weighting 69 grams
- Puebla deer mouse weighting 59 grams
- Gray leaf-eared mouse weighting 68 grams
- Oecomys roberti weighting 73 grams
- Cliff chipmunk weighting 63 grams