a rabbit
Answer.
I would say it would be the rat, a female can produce up to five litters a year. A litter can be anything up to twelve babies, although on average seven to eight is more likely. Gestation period for a rat, is around 21 days.
the rabbit or hare is the most fertile animal in the world
a dog
Peccary, wild boar, razorback.
It's a BAT.
seal
Most fertile is the superlative for fertile.
i suppose in the UK it is a rat - urgh! but otherwise its a thing that has babies but not in an egg, like a bird is not a mammal because its babies are born in eggs mut sheep or horses etc. there mammals because they don't lay eggs.
more fertile, most fertile
Orientals are the least sexually active and least fertile. Blacks the most sexually active and most fertile. Whites are intermediate.
The most important factor of making Mesopotamia's farmland fertile was water.
The cheetah is the fastest mammal.
Nothing is the most safe mammal. Rabbits do no harm, it may be the safest.
i ment like the most evil mammal in greece at the point in time