A critic has lately insisted, with some parade of mathematical accuracy, that longevity is a great advantage to all species, so that he who believes in natural selection "must arrange his genealogical tree" in such a manner that all the descendants have longer lives than their progenitors!
eta halatan, hautespen naturalean sinesten duenak "bere genealogi zuhaitza" hor ondorengo guztiak beren arbasoek baino bizitza luzeagoa izateko moduan jarriz "atondu beharra dauka".