If mammals didn t have us, most of them would have to change their diet. We're the only part of the skeleton that sticks out. We re teeth.
Teeth are the hardest, most durable part of the mammal skeleton.
Because we're small and hard we get preserved as fossils more often than the rest of an animal s bony skeleton. It's a good thing, too, because you can get a lot of information from teeth like us. You can identify what kind of animal we belong to. You can also get a rough idea of what types of food our animal ate and how old it was when it died. You can usually find out about what kind of animal my owner was by these traits, especially the pattern on the top of my molars.