
Top 10 CNN Hero for 2016 Sherri Franklin founded Muttville, a nonprofit specializing in rescuing older dogs from shelters and finding them loving homes.

Franklin founded Muttville out of her home in 2007, but today the group has its own facility and has adopted out more than 4,000 senior dogs.

Many of Muttville's dogs are there because their owners passed away or can no longer care for them.

Muttville gets around 150 requests each week from individuals or shelters asking the group to take their elderly dogs.

In addition to Muttville's facility, Franklin has made connections with more than 100 foster families, allowing the group to save even more elderly dogs.

Muttville also specializes in matching many of the senior dogs they rescue with senior citizens.

Every dog that Muttville receives sees the group's in-house veterinarian to get vaccines, a microchip, and urine and blood analysis. The group also runs a program for terminally ill dogs.

Franklin says that a lot of the adopters that Muttville works with adopt dogs over and over again.

Franklin says that when it comes to adopting senior dogs, "(i)t is not about the quantity of time, it really is about the quality of time you spend with your animal."