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.
老化しない種は 存在します　例えばヒドラ ですが ヒドラは神経系を持っていません 何らかの機能に依存した いかなる組織も持ち合わせない とても長生きの細胞なのです