A look at the strongest, biggest, most numerous, and just weirdest dental situations on the planet.

One has been depicted with two tusks. Narwhals, Monodon monoceros, are toothed whales that live mostly in Arctic coastal waters and inlets. Male and female narwhals only have two teeth, which are both ...

Like walruses and elephants, male narwhals (Monodon monoceros) grow tusks; these are modified teeth. In narwhals, the left tooth erupts from their head, reaching more than 8-feet-long in some ...

Each male has a tusk, and occasionally two tusks, but fewer than 15% of females have one. The narwhal tusk is a marvel of engineering. It is both very strong and very flexible – which is unusual ...