A big new study investigates what affects the life-span of reptiles and amphibians
Ever wondered about the secret to a long life? Perhaps understanding the lifespans of other animals with backbones might help us unlock this mystery.
Animals that are small and warm-blooded, such as mice, age quickly since they have faster metabolisms—and turtles age slowly since they have slower metabolisms. By this logic, cold-blooded animals should have lower metabolisms than similar-sized warm-blooded ones. We found this was true for reptiles as a group, but not for amphibians. Importantly, this finding has implications for the effects of global warming, which might lead to reptiles aging faster in permanently warmer environments.
We’ll need to conduct more research to figure out why just having protections is linked to a longer life.Finally, it has been posited that perhaps longevity is linked to how late into life an animal reproduces.
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