A mouse that is three months old is a young adult. Your mouse will need:
a cage or tank that's "escape proof"
bedding should cover the bottom of its cage (aspen is fine)
Food and water supplied at all times
A place to hide in (you can buy one at the pet store but toliet paper rolls will do)
And plenty of lovin! Just remember to feed him or her and clean the cage and change bedding once a week.
good luck :D
Do not take care of wild animals.
It depends on how old the mouse is. If it is a New-born then no the mom will leave the mouse.
That would be the feild mouse.
It took about several months
If you don't take much care of it it will live about 1 year or so if you don't feed it properly because of tumors but if I have to say on adverage 1year and 7 months
let the mother take care of her babies you just have to take care of the mother like feeding her making sure that she has plenty of water to drink and a clean environment.
Take care of yourself such as your face thats how people are beautiful naturally
At least 9 months.
if you have no experience of cooking whatsoever,it will take approximately...100,000years and thats for the young people
When you think he/she is ready and could take care of itself
babydow.com you can take care of a baby and secondlife.com you create a character and take care of it. idk those are the only websites i know of. theres also the virtual families app where you take care of families but thats for your phone or ipad
it takes a year thats why there are 12 months