It&#x27;s disappointing that this article doesn&#x27;t address the various animals with a degree of biological immortality (eg jellyfish, lobsters). I&#x27;m not convinced that the laws of thermodynamics make (human-scale) aging inevitable and insurmountable if there are several unrelated critters who have managed it.<p>More likely is that immortal monkeys don&#x27;t make evolutionary sense given the energy requirements.