Your new post is loading...
If humans became immortal, the species would be at a biological disadvantage, says evolutionary biologist Andre Martins of Brazil's University of Sao Paolo. In a computer simulation which pits an immortal species against one which prunes its population, the species that grows old "can drive immortal competitors to extinction," writes Martins. "This counter-intuitive result arises from the pruning caused by the death of elder individuals. When there is change and mutation, each generation is slightly better adapted to the new conditions."
