There are species that have no aging -- Hydra for example -- but they do it by not having a nervous system -- and not having any tissues in fact that rely for their function on very long-lived cells.
Postoje vrste koje ne stare -- hydra, na primjer -- ali one to postižu time što nemaju živčani sustav -- i nemaju tkivo čije funkcioniranje ovisi o stanicama vrlo dugog vijeka.