Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to care for baby mice [title] Watch the mother closely for signs of aggression or carelessness. [step] If the babies you are caring for have a mother, she will likely keep them alive. However, female mice are often careless towards their young, may abandon a litter, and may even eat some of their offspring.

Ending1: Take her aside and ask her if she would ever allow new babies into her home. If she does, definitely introduce the new baby mice that you want into her home. Ending2: If a mother sees new changes in her babies, she will likely stop caring for them and will try to protect all of them. [substeps] Watch for signs that a mother is withdrawing from the babies (it is normal to see a mother cry out every time the babies are nestled together). Ending3: If the mother displays any aggressive behavior, it may be because she is not quite ready to have a litter. Sometimes vets will suggest she may want to ensure that you and your baby mice are well fed and in good health before starting a litter. Ending4: [substeps] If the mother stops feeding her young, or if she eats any babies, place her in a separate cage if the mother is aggressive or does not care for the infants, you will need to feed and care for them yourself. [title] Find a foster mother if the mice are orphans.

Answer format: ending1/ending2/ending3/ending4