[ExI] Maximum biological lifespan

John Clark johnkclark at gmail.com
Fri Aug 12 16:28:07 UTC 2016

On Thu, Aug 11, 2016 at 7:16 PM, David Lubkin <lubkin at unreasonable.com>

​> ​
> Do you see any inherent maximum active lifespan (that is, not in a dormant
> state like a spore) for an evolved biological being?

​Amoebas never die of old age, unless you want to say it dies and leaves 2
offspring. ​

​ B
 probably don't die of old age either, one is 4700 years old and its
mutation rate is no higher than that of a juvenile tree and its vascular
tissue seems to work just as well. ​The oldest known multicellular animal
was a O
​ that was 507 years old when it was dredged up and killed in 2007.

 John K Clark
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