How many baby Glacier rats are in a litter?
A Glacier rat (Rattus richardsoni) usually gives birth to around 2 babies.
Upon birth, they weight 4.67 kg (10.3 lbs) and measure 4 cm (0′ 2″). They are a member of the Muridae family (genus: Rattus). An adult Glacier rat grows up to a size of 12.4 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.
The glacier rat (Rattus richardsoni) is a species of rodent in the family Muridae. It is endemic to the New Guinea Highlands near Puncak Trikora (=Mt. Wilhelmina) and Puncak Jaya (=Carstensz Pyramid), West Papua, Indonesia. Its altitudinal range is 3,225–4,500 m (10,581–14,764 ft) above sea level.
Other animals of the family Muridae
Glacier rat is a member of the Muridae, as are these animals:
- Long-haired rat weighting only 221 grams
- Oxymycterus hucucha weighting only 67 grams
- Palawan soft-furred mountain rat raching a size of 14.4 cm (0′ 6″)
- Chestnut-bellied spiny rat weighting only 159 grams
- Southern multimammate mouse with 7 babies per pregnancy
- Mexican vole with 2 babies per pregnancy
- Mindomys weighting only 60 grams
- Darwin’s leaf-eared mouse with 4 babies per pregnancy
- Dusky-footed woodrat with 2 babies per pregnancy
- Paramo Oldfield mouse weighting only 77 grams
Animals that share a litter size with Glacier rat
Those animals also give birth to 2 babies at once:
- Tres Marías Island mouse
- Smith’s red rock hare
- Black-tailed mosaic-tailed rat
- Large Indian civet
- Common marmoset
- Soft-spined Atlantic spiny rat
- Indian hedgehog
- Tatra pine vole
- Stephens’s kangaroo rat
- Serval
Animals with the same weight as a Glacier rat
What other animals weight around 64 grams (0.14 lbs)?
- Peters’s striped mouse weighting 54 grams
- Dwarf fat-tailed jerboa weighting 52 grams
- Ethiopian epauletted fruit bat weighting 66 grams
- Horsfield’s fruit bat weighting 55 grams
- Andean swamp rat weighting 64 grams
- Andean mouse weighting 69 grams
- Alston’s cotton rat weighting 55 grams
- Emin’s gerbil weighting 52 grams
- Gray-collared chipmunk weighting 61 grams
- Natal multimammate mouse weighting 62 grams
Animals with the same size as a Glacier rat
Also reaching around 12.4 cm (0′ 5″) in size do these animals:
- Coruro gets as big as 13.2 cm (0′ 6″)
- Neblina slender opossum gets as big as 12.3 cm (0′ 5″)
- Coast mole gets as big as 12.3 cm (0′ 5″)
- Brazilian slender opossum gets as big as 12.5 cm (0′ 5″)
- Flat-headed vole gets as big as 11.7 cm (0′ 5″)
- European mole gets as big as 12.9 cm (0′ 6″)
- Asian garden dormouse gets as big as 13.7 cm (0′ 6″)
- Siskiyou chipmunk gets as big as 14.5 cm (0′ 6″)
- Nicobar shrew gets as big as 10 cm (0′ 4″)
- One-striped opossum gets as big as 13.7 cm (0′ 6″)