Les Trois Chenes profile image 90

What determines the life span of animals?

Why do some species live so much longer than others? Parrots live to be over 100 but mice only live 2 years. I feel that the person who can answer this might be on the way to telling us how to live forever!

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nifty@50 profile image81

nifty@50 says

6 years ago
Ben Evans profile image74

Ben Evans says

6 years ago
kristiene profile image60

kristiene says

6 years ago