 It's kind of crazy. Personally, I often think of a lot of animals, given I'm most familiar with dogs and cats. I usually think between a 10- and 20-year lifespan. But according to FaunaFlora.org, it looks like mountain gorillas and silverback gorillas have a lifespan of 50 to 60 years. Really? Okay. So this one, right? And without the heart issues, probably would have lived to be 60. Yeah.