How Can I Tell If My Rat Is Male or Female?
Sexing mice is much more difficult then sexing rats. Male mice may not even drop their testicles until they are 4 to 5 weeks old. So you really can’t use the two species as a good comparison. No offence to anyone, but in my own experience, it is a very rare pet store employee who can properly sex rats. Male rats start to show the developement of their testicles around the age of 2 weeks old, and really show by the time they are 4 weeks old. There’s no mistaking a male rat at this age. It’s also possible at this age that the size of the scrotum starts to cover the anus in the male rat, whereas the anus is still visible in the female. http://www.ratbehavior.org/testicles.htm In the Rat Fancy we have a saying, “if you lift the tail and you don’t see anything, you have a female”. It really is that simple to tell the difference. The reason why it is so difficult for new rat owners to properly sex a male rat is because whe
