I think that an older male and a much younger male gerbil are the nicest.. Female gerbils from my experience can be really mean and nasty to each other and you. Boys in general =much better.
Nicest
No. Nicest is an adjective.
rihon is the nicest girl on stardoll
Mew is the nicest pokemon
Enya is the nicest girls name.
the nicest fantasy character is Pegasis
ibrahim_07 is the worlds nicest member
nicest
brooke tessmacher is the nicest and the prettiest
Other gerbils.
Gerbils are an animal and can not be "invented".
Male gerbils can be neutered, but it is not recomended. Female gerbils should not be spayed. In general male gerbils should not be neutered unless there is a good reason for it.