Fun fact: female rats are pretty much always in heat. They're up for action 24/7. They can be nursing one litter while already pregnant with the next one.

zgryphon said:

Fun fact: female rats are pretty much always in heat. They're up for action 24/7. They can be nursing one litter while already pregnant with the next one.

And we thought rabbits are the freaky ones

Skydragon0 said:

And we thought rabbits are the freaky ones

You confused rabbits with dolphins...

Rats and mice have an estrous cycle of 4-5 days. Rabbits have something similar every 16-18 days, though they differ as they only ovulate only after mating. The 16-18 day period is broken down to 12-14 days of being receptive and 2-4 days of not being receptive.

GreyOmega said:

Rats and mice have an estrous cycle of 4-5 days. Rabbits have something similar every 16-18 days, though they differ as they only ovulate only after mating. The 16-18 day period is broken down to 12-14 days of being receptive and 2-4 days of not being receptive.

I learn something new on danbooru everyday