Sadly, U.S. Animal Centers have to euthanize an estimated 3-4 million cats and dogs each year simply because there are not enough homes for all the abandoned dogs, cats, puppies and kittens. The pet overpopulation epidemic is so staggering that for every animal born in the United States to have a home each and every human being would have to own 6 dogs and 9 cats. So, in actuality a family of four… 2 parents and 2 small children would have to own 24 dogs and 36 cats. It costs U.S. taxpayers an estimated 2 billion each year to round up, house, kill and dispose of homeless animals.