And an estimated 90% of adults in the US have fillings. But many animals don't have this problem. Because they can regrow their teeth replacing old, damaged ones with brand new pearly whites.
Sabre-toothed predators -- best know from the infamous Smilodon -- evolved multiple times across different mammal groups. A new study reveals why: these teeth were 'functionally optimal' and highly ...
“The juvenile was weaning – replacing its teeth – and yet it was as much ... "This is unusual and tells us a lot about how mammals' evolution took place.” Small mammals living today ...
We have specialized jaws, whose hinges came together early in our evolution to create the ear bones that let us hear better than other animals. We have complex teeth that let us grind and chew our ...
Mammal teeth eventually became so diverse in shape ... Some ancient traits were lost and had a major influence on mammal evolution. One of the significant losses among mammal ancestors was ...
Because tooth shape varies with fracture properties of the foods that primates eat, relationships between dental form and function can teach us about the diets of our distant ancestors. Aristotle ...
A study titled "Functional optimality underpins the repeated evolution of the extreme 'saber ... and performance of 95 different carnivorous mammal teeth, including 25 saber-toothed species.
The findings help explain why sabre-teeth evolved so many times (at least five independent times in mammals ... trade-offs that shaped the evolution of diverse dental structures across the ...