san francisco and we want to let that secret out of the bag. >> reporter: so to do that, pets unlimited is merging with a higher profile agency, the san francisco spca. >> we are hoping to drive more adoptions in the fillmore street location in particular. in fact, our goal is to save 1,000 additional animal lives per year as a result of the merger. >> reporter: but you may be surprised to learn that no dogs or cats in the city are euthanized because they are unwanted. the spca is so good at finding homes for homeless pets that they also adopt out animals from the county shelter and some from other northern california cities, as well. >> you know, san francisco is a unique community. there are very few places on earth that can claim this level of care for animals. >> reporter: it's a testament to the compassion of people here that in this city, an unwanted pet doesn't stay unwanted forever. in san francisco, john ramos, kpix 5. >> and san franciscans are generous as well because the spca's operation is funded entirely by private donations. >>> you have about a half hour to go out and buy a powerball ticket for tonight's drawing. wait until we're don