An image came into my mind as I watched the terrifying, wonderful process of human birth. (discovermagazine.com)
Due to the difference in hormones and the reproductive cycle, human birth control pills do not work to prevent contraception and pregnancy in dogs. (dogs.lovetoknow.com)
Human birth control pills can even be toxic to dogs, but fortunately, a dog would have to eat a very large number of these to cause a serious problem. (dogs.lovetoknow.com)