system
Given the following post, respond as if you're commenting on Reddit:
human
A question on Evolution

If a population of animal lives in an area where their food started to cause rapid tooth decay, would evolution sort it out in ways such as a different diet? Or maybe just generally make them stronger? Even a different means to chew and consume food? 

If humans stopped brushing their teeth and continued to consume sugary foods, after a LONG period of time would their teeth undergo changes (other than being severely decayed). Or is it our ability to create tools to keep them clean keep them from evolving? Would we create superior tools?
gpt
Hypothetically, if the ecosystem changed in such a way as to cause serious enough tooth decay that many individuals in a species starved to death before living long enough to rear offspring, then one of two things would happen:  Either the species would die off completely and become extinct, or some subpopulation would adapt in such a way to cope with the change in the environment.

It's very important to keep in mind that nature doesn't care whether the species goes extinct.  Evolution isn't "looking" for an adaptation to cope with the change in environment.  If such an adaptation is already in some members of the species when the environmental change is occurring, then those members are the individuals who live long enough to procreate, so the adaptation becomes more widespread.