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How do you tell the gender of a baby mouse?
They have grown fur but have not opened there eyes. Also will they just start drinking water when weaned. Do I have to do an help weaning them?
- Bone AloneLv 73 months agoFavorite Answer
It’s tough to tell when they’re this young. Wait until you’re ready to wean to sex them, about 21 days after birth.
Just flip them so that their belly is facing you. Look at the vagina/penis and anus. The penis is farther away from the anus. The penis looks like a little nub, almost like a skin tag.
In females, there’s almost a line of dark fur that connects the vagina to the anus. It looks almost like an anchor.