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Mice/Male baby mouse chasing others


The 3 boys
The 3 boys  
Hey Natasha (:

I have 5 baby mice, and they're 3 weeks old today (3rd). They're eating solid foods and drinking water - have been since about 2/2.5 weeks old. I've noticed that one of the boys is chasing the others around. I have 3 boys and 2 girls. The boy that's chasing mice around chased a girl to start with but then i separated them, then he was chasing around a boy just now, and i can hear some mouse squeaking noises coming from the cage. He still drinks mums milk though. So i don't know if i should separate him from the cage or not yet..

Thanks (:

Hi Claire,

Unless you actually see blood, chasing is OK. Although theoretically they could leave their mom today, it is better if they can stay another week. But at 4 1/2 weeks a precocious mouse can breed, so make sure you separate them in a timely fashion.

Have fun with the little tykes!

Squeaks n giggles,



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I can answer questions about raising mice and caring for them as pets, with knowledge from my 38 years of having fancy mice as pets. I have NO MEDICAL TRAINING and you should take a sick mouse to the vet; but if you simply can't, I will try to help you. I LOVE PHOTOS!!! I ALSO LOVE UPDATES! Let me know how the little tyke is doing later on, for better or worse, especially orphans. It also helps me to help the next person. Please first search first: use 'Natasha Mice Mouse' with whatever else your question includes. Or check out these links: **** YOUR FIRST MOUSE (my video; rough draft): **** TEN VIDEOS ON RAISING ORPHANS: **** SEXING MICE: **** And some GREAT MOUSE INFO SITES:


I have had mice for 40 years (since I was 5!). I raised them when I was a child but now I keep all females, and never fewer than three so that if one dies the others are not devastated, because they have each other.

I run Rats and Mice are Awesome on Facebook. The official name is Rats are Awesome.

B.A., M.A., M.A. in Linguistics: Yale University and University of Connecticut

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