Giant rats and rad rats are oversized versions of pre-War creatures.
Variants
Rat

They differentiate in color, being black, gray, or white.
Giant rat

These rats are larger than mole rats and humans.
Giant rat pup

The bigger version is equal in size to a mole rat. As a result of radiation exposure, it became a little bigger and a little stronger than the smaller version. The species that exist in the Mojave have acquired white hair, blue glowing eyes, light brown color, and are bigger than the normal species.
Rodent of unusual size

Appears with Wild Wasteland.
Unnaturally large sized rodent

These are uniquely large giant rats, with only two in existence in Fallout: New Vegas. They are identical in appearance to other giant rats in the Mojave Wasteland, except for size. They are more aggressive and will attack on sight along with any nearby mutated rats.
Radrat

Radrats appear in the Fallout 4 add-on Nuka-World and Fallout 76.
Notes
Story Time Miss Nanny mentions mice during the story "Cinderella" that she will tell to the Vault Dweller as part of a random encounter.[1]
Gallery
See also
References
- ↑ Story Time Miss Nanny: "She waved her wand at a pumpkin which turned into a silver carriage, and a family of mice, which turned into a team of horses to pull the carriage."
(Miss Nanny's dialogue)