Once the babies are born, allow the mother at least 3 days alone with them, without being disturbed. This allows mum to become familiar with the babies.
Then, providing mum doesn't mind you coming near the babies, you should move all the babies & the entire nest into a new cage at once. Make sure to place some old bedding in the new cage, so as to lessen the chances mum will reject the babies.
At three weeks the baby mice are not fully weaned from their mother. You should keep the baby mice with their mother until four weeks. Then separate the boys and girls. The girls may be housed with their mom.
You have to look at the tail. Squirrels have bushy tails. mouses have thin tails.
Guinea pigs should be kept in a moderate temparature preferrably indoors. This should prevent field mice from getting into the cage. If you have any trouble you can always buy a new cage and set it up indoors.
It is not a good idea to add more mice into the cage, especially adult mice that she does not know! But adding additional newborn mice is a common practice. The sooner, the better, and put the new additions behind her back, so she will think that she delivered them! Do not add any more baby mice when her original litter has started growing "peach fuzz." At the peach fuzz phase, the babies will start to have their own distinct odor, and the mother will instantly recognize which babies are hers, and which aren't. If she smells babies that aren't hers, she will eat them.
For the most part, no - newborn puppies mostly sleep and and nurse for the first two weeks.
Newborn is two syllables: new-born.
Newborn has two syllables. The syllables are new-born.
Sanitize the cage and get new bedding and the cage is good as new!
Buy a new cage and go to your hamsterz current cage. Then drag the new cage up to where you see another cage pic. (all stuff currently in cage will be moved to inventory)
If you're talking about a newbord dog the answer is neither. 3 kg is a bit below the average weight of a newborn human baby, which is way bigger than a newborn puppy. OTOH 10 g is down in the size of mice, which isn't particularly accurate either.
Find where your hamster is escaping from its cage and duct tape it or buy it a new cage.
Place him in a separate cage next to the other two's cage, this way they can't fight but they still have each others company x