No, rabbits do not give birth through their mouth. Rabbits are like other mammals and they have babies in their uterus. Pregnancy is about 31-33 days long and the mother rabbit has a litter of 12 or more baby rabbits. The babies are born moist and hairless, and they will instinctively start to nurse from their mother's teats almost immediately. If the babies are not able to nurse from their mother, you will need to bottle feed them a special milk formula made for rabbits. Failure to do so can lead to serious health problems for the babies.