A mollusk grows magnetic teeth so tough they can grind down rocks.  

Galagadon’s tiny teeth look like the spaceships in its namesake video game from the early 1980s.

A study of tiny monkey skulls and teeth suggests that shrinking body size didn’t crowd out wisdom teeth during evolution.

Tooth fossils of cave dwellers represent the first known instance of our species inhabiting a rainforest.

Once mated, female cabbage white butterflies (Pieris rapae) use their "vagina dentata" to rip through the hard encasing of a male’s ejaculated spermatophore. 

Scientists repurpose an Alzheimer’s drug to enhance the ability of stem cells to repair dental damage in mice.

Fossil analysis suggests members of at least one dinosaur species started out with full sets of teeth, only to lose them in adulthood and develop beaks instead.

Intricate, digital maps of animals’ teeth, created using the same geographical tools used by mapmakers, may help researchers determine the diets of extinct species.