Although they can't die of natural aging, they also can't live forever. Nature has a way of killing them. The way they die is out of starvation or if they contract a disease. They keep growing throughout their lifespan and they require more and more food.

Are crocodiles immortal?

Crocodiles may not be out of the ordinary when it comes to growing old, but there are animals that do exhibit what's called "negligible senescence", or a lack of normal ageing. ... So, no, crocodiles do not hold the secrets of immortality, nor do they "just keep getting bigger".

Can crocodiles live up to 150 years?

As far as reptiles go, crocodiles are probably one of the most common creatures that come to mind — and one of the most deadly. ... While most make the news due to their large intimidating size, crocodiles have a long lifespan, reaching over a 100 years of age.