Humans for example can bite into a jaw breaker and chip our teeth and many other things we can not do that animals can. Is this based on the PSI of animals bites, bone density or anatomy? Various animals such as Gorillas or crocodiles can bites skulls and fight with one another and experience little to no damage to their teeth in respects to how a human would.
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A lot of animals who are extremely reliant on teeth to do crazy stuff like alligators and sharks will grow new teeth far more often.
Some species of rat require things to chew on or their teeth will grow through their own jaw. I think beavers too but don’t 100% recall.
Other predators like wolves don’t eat down to the bone and have developed hunting techniques that don’t take a bite on the head of something since they have similar teeth cycles like we do. Dogs can extent many more PSI of bite force than humans but they also are less likely to instinctively eat what is essentially a rock like a jawbreaker.
And if they do break a tooth, if they survived long enough to reproduce first, then that’s mission accomplished as far as evolution is concerned.
Edit: with some cursory research there’s even usage of broken teeth as evidence of food scarcity in predators. Normally predators don’t eat down to the bone as previously mentioned but with food scarcity they’re more likely to eat more from a kill and risk breaking a tooth. So scientists would see more broken teeth in areas of food scarcity.
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