How many baby Soft-spined Atlantic spiny rats are in a litter?
A Soft-spined Atlantic spiny rat (Trinomys dimidiatus) usually gives birth to around 2 babies.
Upon birth, they weight 23 grams (0.05 lbs) and measure 1.7 cm (0′ 1″). They are a member of the Echimyidae family (genus: Trinomys). An adult Soft-spined Atlantic spiny rat grows up to a size of 19.7 cm (0′ 8″).
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 soft-spined Atlantic spiny-rat, Trinomys dimidiatus, is a spiny rat species from South America. It is endemic to Brazil.
Other animals of the family Echimyidae
Soft-spined Atlantic spiny rat is a member of the Echimyidae, as are these animals:
- Giant Atlantic tree-rat weighting only 502 grams
- Montane bamboo rat weighting only 382 grams
- Painted tree-rat weighting only 518 grams
- Orange-brown Atlantic tree-rat weighting only 312 grams
- Guyenne spiny rat with 2 babies per pregnancy
- Tome’s spiny rat weighting only 285 grams
- Short-tailed spiny rat weighting only 284 grams
- Long-tailed armored tree-rat weighting only 439 grams
- Broad-headed spiny rat weighting only 201 grams
- Drab Atlantic tree-rat weighting only 260 grams
Animals that share a litter size with Soft-spined Atlantic spiny rat
Those animals also give birth to 2 babies at once:
- Florida mouse
- Highland tuco-tuco
- African yellow bat
- Vordermann’s flying squirrel
- Common treeshrew
- Chinese ferret-badger
- Pampas cat
- Chacoan peccary
- Chisel-toothed kangaroo rat
- Javan mongoose
Animals with the same weight as a Soft-spined Atlantic spiny rat
What other animals weight around 167 grams (0.37 lbs)?
- Rajah spiny rat weighting 150 grams
- Black rat weighting 142 grams
- Echigo mole weighting 163 grams
- Pygmy ringtail possum weighting 151 grams
- Bolivian chinchilla rat weighting 158 grams
- Nicobar treeshrew weighting 170 grams
- Fat-tailed dwarf lemur weighting 197 grams
- Lunda rope squirrel weighting 135 grams
- Madras treeshrew weighting 160 grams
- Mount Pirri isthmus rat weighting 138 grams
Animals with the same size as a Soft-spined Atlantic spiny rat
Also reaching around 19.7 cm (0′ 8″) in size do these animals:
- Bush rat gets as big as 15.8 cm (0′ 7″)
- Soft-spined Atlantic spiny rat gets as big as 19.7 cm (0′ 8″)
- Dark-tailed tree rat gets as big as 15.9 cm (0′ 7″)
- Earless water rat gets as big as 19.3 cm (0′ 8″)
- Eastern rat gets as big as 17.3 cm (0′ 7″)
- Southern African hedgehog gets as big as 18.2 cm (0′ 8″)
- Northern flying squirrel gets as big as 16.1 cm (0′ 7″)
- Short-footed Luzon tree rat gets as big as 20 cm (0′ 8″)
- Halmahera naked-backed fruit bat gets as big as 17.8 cm (0′ 8″)
- Lewis’s tuco-tuco gets as big as 17.7 cm (0′ 7″)