What is a ground sloths lifespan?

Ground sloths are extinct, but when they lived, their lifespan depended on the species. According to the San Diego Zoo:

- The Giant Ground Sloth: Up to 50 years

- The Shasta Ground Sloth: Up to 50 years

- The Lesser Ground Sloth: Up to 20 years

- The Pygmy Ground Sloth: Up to 10 years