Originally posted by luckies4me
Rats mount eachother all the time. Babies do it to eachother out of play, and female rats will also mount other females when in heat. It's all very common. With older bucks, they like to mount younger boys to show them who's boss.


Congratulations on your new ratties. I can't wait to see pictures! If you have any questions at all on care, feeding, husbandry etc. just ask.
Second what Cass said.

And trust me, you can tell the difference quickly between a male and a female that is for sure!!

Here is a picture that might help you just to make sure: