Before they get fur they are pinkies. Then I call them pups
The islands could be named because there are rats on them, or because they are in the shape of rats. The smaller one is given the term "little" to distinguish the two. In Western Australia, there are islands called Rat and Little Rat Island. The "big" name is not used.
An adult rat is called a rat.
Cavia porcellus does mean little rat in Latin.
maybe because they are also called the "grass cutting rat"
If it is a male rat then it become sterile.A castrated rat is a sterile rat.
A male rat is called a buck.
it is called a flying rat
giant rat
A small rat is called a pup
a nasty little robent called a rat or mouse
a female rat is called a doe and a male is a buck
Ummm . . . yes, the baby rat is a rat, but maybe you mean what are they called . . . A baby rat is called a puppy or kitten, a female rat is called a doe, and a male rat is called a buck.