They're actually the longest teeth in the human mouth. So what are these long, sharp teeth doing among our short, stubby ones? Well, contrary to popular belief, it's not for tearing and ripping meat.

It's known for showing off its razor-sharp teeth while it swims, but this isn't aggressive; it's just a case of being a mouth breather. But those teeth aren't just sharp -- they're hinged.

This menacing predator uses its long, sharp teeth as a cage to keep small fish and shrimp trapped once they’re inside its mouth. The video above, filmed by the Monterey Bay Aquarium Research ...

So next time you brush your teeth, try resisting the urge to rinse right away. Instead, let the toothpaste linger in your mouth for a few extra moments, giving the fluoride more time to work its ...

They are large-bodied and display a mouthful of sharp teeth that protrude in all directions, even when the mouth is shut. Despite this, they are a docile, non-aggressive species, known to attack ...

Teeth grinding, or bruxism, can happen day or night. But sleep bruxism is much harder to treat since many of us don’t even know we’re doing it. The condition is often only detected when ...

Nicknamed the Ginsu shark after the kitchen knife that slices and dices, Cretoxyrhina ripped apart prey with a mouth full of razor-sharp, bone-shearing teeth. Evidence suggests Cretoxyrhina fed on ...

They're actually the longest teeth in the human mouth. So what are these long, sharp teeth doing among our short, stubby ones? Well, contrary to popular belief, it's not for tearing and ripping meat.