After their fertility wanes, breeding animals are commonly killed, abandoned or sold to another mill. Puppy mills will go out of business when people stop buying the puppies. Puppy mill puppies are sold even in the swankiest of pet stores and through the most picturesque of web sites. The truth is, unless you personally visit the place where your puppy was born and raised, you have no real way of knowing whether you're supporting a puppy mill. Please visit humanesociety.org/puppymills to learn more and discover how you can help put an end to this cruel and inhumane practice. 20% of the sale of all HSUS products goes to support the programs of The Humane Society of the United States.