People who have witnessed the birth of kittens admit that it isn’t pretty. For one thing, there are no midwives or nurses available, so the mom is doing all the work herself—which includes licking up the afterbirth and cleansing herself thoroughly. The kittens themselves get licked over thoroughly, not just to clean them but to stimulate their breathing. Not attractive to watch, but it’s all part of the miracle of birth and, after all, this is how your cat came into being.