Humans May Evolve To Grow An Endless Supply Of Teeth

It really annoys me the way a lot of people picture evolution. The genetic mutations happen before the need is realized. If mutation helps a species survive in it's environment, the gene is carried on through natural selection.

An endless supply of teeth has no environmental advantage in the modern western world. The loss of an adult set of teeth does not inhibit an individual from eating or mating.

However, it will be interesting to see what genetic mutations carry on in the developing world assuming it never attains a western standard of living.