LEMON: There are more than 30 million stray or feral cats living in the U.S. They often suffer outside facing disease, toxins and predators. Well, this weeks' CNN Hero saw stray cats every day walking in his Queens, New York neighborhood, but didn't know how to help. Then he learned about Trap-Neuter-Return or TNR. It is what it is called, Trap-Neuter-Return. Now, he spends nearly 40 hours a week trapping these cats, getting them fixed and changing their lives. Meet "Paul the Cat Guy."</s>PAUL SANTELL, CNN HERO: My main focus is Trap-Neuter-Return, TNR, and rescuing, grabbing cats off the streets, saving lives. That's one. With TNR, this is the last generation that has to suffer outside. Come on. Come one. Now, I probably fixed and returned at least a thousand feral cats in about four and a half years. A lot of time, people ask me, do you love cats? I like them but that's not really why I got into it. You want to save lives. This is the greatest feeling in the world.</s>LEMON: Well, see how Paul does his work and see more adorable kittens, go to cnnheroes.com. And while you're there, nominate your own hero. Thanks for watching. Our coverage continues.
Meet CNN Hero, "Paul The Cat Guy."