But while some cats seem to enjoy nine full lives, Finnegan, who is just 7 months old, may live a shorter life than most cats.
"It started when I took him for a physical and they said, 'Oh my god, he has a heart murmur,'" Pelton says.
A substantial heart murmur.
"He's not going to be a cat that lives to be 21 years old," Pelton explains. "We have to take him every year and he'll be on medication and might die of heart failure. He could live 10 years."
It's a condition shared by Finnegan's siblings, who were named Cookie Pie and Custard Pie by staff at the Michigan Cat Rescue.