* Multiple Litters: Rats can have multiple litters per year, typically 3-7.
* Litter Size: The number of pups in a litter varies, usually between 6-12.
* Breeding Frequency: A female rat can become pregnant again soon after giving birth, so there's a high chance of overlapping pregnancies.
* Individual Variation: Factors like age, health, and environmental conditions affect a rat's breeding capabilities.
Instead of a specific number, it's more accurate to say that a female rat can potentially produce hundreds of offspring over her lifetime.