Fun Fact Friday!

Fun Fact Friday!

Despite the differences in teeth across the mammalian order, the underlying process of tooth growth is the same, whether it’s for lions, kangaroos, elephants, or us. What changes is how nature sculpts the shape of the tooth, altering the folding and growth patterns to suit the distinct diets of different species. Cows have flat molar teeth with parallel ridges for grinding tough grasses. Cats have sharp crested molars, like blades, for shearing meat and sinew. Pigs have blunt, thick ones, useful for crushing hard roots and seeds.

From the TED-Ed Lesson How did teeth evolve? – Peter S. Ungar

Animation by Cabong Studios