If nonsenescence, or biological immortality, is an option in nature, how come this particular mini-bit of pond scum got the big prize?
Everything Dies, Right? But Does Everything Have To Die? Here’s A Surprise
Evolution is such a random, casino like affair; it’s startling to learn that longevity varies without regard to size. I know Daniel Martinez’s hydras were cleaned, fed, protected. They didn’t live in the wild. But still, they have lasted and lasted and lasted. I expect sequoias, redwoods and whales to last longer than mayflies, daisies and clover. Big things go on, but when two little freshwater animals have such drastically different life expectancies, all I can think is … whoa! Life is a puzzlement. npr