Yes, they can. But concerning the mother, don't keep them together. Only have the babies with the mother when milk feeding them. The mother might eat the babies.
Mice reproduce frequently and can have litters every 20-30 days. A typical litter size is around 5-6 pups, but they can have multiple litters in a year. Mice reach sexual maturity at around 6 weeks of age, allowing for rapid population growth in favorable conditions.
Mice reproduce quickly, with a gestation period of about 19-21 days and litters typically ranging from 4 to 12 pups. Female mice can become pregnant again shortly after giving birth, allowing for multiple litters in a short period of time.
You shouldn't put older mice with younger mice. It usually causes fighting. If you must put them together, give them their own little housing area, take them out of the cage to get used to one another, the older one may get territorial if you put the other one straight into the cage with it.
It would be a good idea to put two mice in a cage together so that they don't get lonely and bored. It would be a good choice to put two females together because they would get along very well. Putting two males together would result in alot of fighting and possibly a dead mouse. But just don't put a male and a female together because otherwise you will have mice multiply every day.
ten mice die before birth
you put a female and a male together but watch them incase they fight!!!
It is inadvisable to put any other animal in with a hamster, as they are solitary creatures, and do not require companionship. They will almost certainly fight, the outcome of which will be dead mice and an injured hamster.
According to what I have read, mice usually have litters of 8 -10, but can have as many as 17. The gestation period is 16 - 21 days, and they can become pregnant again immediately after giving birth, but that this is not healthy and the male should be removed prior to birth and not reintroduced until about 2 weeks after the baby mice are weaned to give the mother time to rest between litters. Anyway, by my math, if two adult mice are left together, they could have 34 babies in one month's time.
You can put 3 mice in a 10 gallon tank. It is best to not put 4 mice because the ventilation will not be enough and will smell horrible and possibly cause distress to the mice.
You should never put mice or any other rodent of different species together. They will attack eachother, and most likely kill eachother if it gets to the extreme.
If she hasn't attacked them by the time they are weigned I don't see why not most people separate them only because they don't imbreeding but I had a huge fish aquarium a long time ago that was used to house 5 pregnant mice, then their litters, and their litters litters...I found myself with 76 micebranching from those 5 and their babies none of them hurt the others or anything so I left them together the only hassle...cleaning that aquairium~
NO!! Dont put two animals together like that unless your watching them, even then be careful. Its a bad idea to put two different animals together, they are DIFFERENT! They will fight and die.