I started collecting mice for a breeder colony two weeks ago... one of the females I got had been looking real chubby the last couple days... I kind of figured I had gotten one that was already preggers. I moved it and two other females to a new bin two days ago. This evening she delivered 12 babies. I am amazed that so many little babies fit inside this tiny little mouse! The two other females are helping out as I had hoped but one has died already and was eaten... ick. I will see if I can get some pics in a few days as I don't want to disturb them.

This site has been such an informative place. Even though I haven't posted, I am reading all the time. Thanks for all the advice and info!!

PS should I be concerned that the mama is a black mouse? I have been reading that the white mice make better moms and are more friendly.... she isn't any more or less friendly so far than any of the others when we handle them, I am just wondering.

Thanks again....