It is, of course, quite natural that a biologist whose attention had been aroused by noticing in his own case the phenomena of precocious old age should turn to study the causes of it. Elie Metchnikoff agearouseattention Change image and share on social
It is often seen that in households where all members are exposed to the same danger, or again in schools or troops where everyone lives the same life, disease does not strike everyone indifferently. Elie Metchnikoff dangerdiseaseexpose Change image and share on social
