How many baby Elias’s Atlantic spiny rats are in a litter?
A Elias’s Atlantic spiny rat (Trinomys eliasi) usually gives birth to around 3 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 Elias’s 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.
Elias’s Atlantic spiny-rat or the Rio de Janeiro spiny rat (Trinomys eliasi), is a spiny rat species from South America. It is found in Brazil.
Other animals of the family Echimyidae
Elias’s Atlantic spiny rat is a member of the Echimyidae, as are these animals:
- White-spined Atlantic spiny rat weighting only 285 grams
- Tome’s spiny rat with 2 babies per pregnancy
- Colombian soft-furred spiny rat weighting only 394 grams
- Minca spiny rat weighting only 284 grams
- Magdalena spiny rat weighting only 284 grams
- Short-tailed spiny rat weighting only 285 grams
- Guyenne spiny rat with 2 babies per pregnancy
- Giant tree-rat weighting only 584 grams
- Goeldi’s spiny rat weighting only 284 grams
- Long-tailed armored tree-rat weighting only 439 grams
Animals that share a litter size with Elias’s Atlantic spiny rat
Those animals also give birth to 3 babies at once: