Forever young: Many cold-blooded creatures don't age, studies show

Flyaway

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No it doesn’t mean they are immortal.

Two studies published in the journal Science on Thursday revealed scant evidence of aging among certain cold-blooded species, challenging a theory of evolution which holds that senescence, or gradual physical deterioration over time, is an inescapable fate.
They did note, however, that even if some speciesdon't have increasing mortality over the years, they do exhibit infirmities linked to age.

Jonathan the tortoise "is now blind, has lost his olfactory sense, and must be fed by hand," they said, proving the ravages of time come for all.
 

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