We know larger animals tend to have longer lifespans. But why do big cats(like leopards, etc)have such a short life(about 15 years) compared to humans(about 80 years)?

Question

p.s.Big cats and humans have similar body weights, if not higher.

In: Biology

Answer 1

Because humans now have modern medicine and don’t live in the wild relying on our physical condition allowing us to catch prey.

Captive tigers have an average lifespan of 22 year, almost 50% longer than wild ones.

The larger animal, longer lifespan isn’t a static standard, its just a loose rule that kind of fits a lot of situations. Elephants are massively larger than us but have a similar life span of 70 years (specfically African Savannah elephants).