Sabre teeth — the long, sharp, blade-like canines found in extinct predators such as Smilodon — represent one of the most ...

A shortfin mako shark head from our spirit collection. This species of shark has needle-like teeth. Long, sharp teeth are excellent at gripping small or medium-sized fish and squid. The bull shark has ...

It may also be used to communicate with other stoplight loosejaws. The fish's jaw and neck are hinged so its mouth can open mouth wide and impale prey on needle-sharp teeth. This fish is found in the ...

Scientists found a 3-foot-long creature with “sharp” teeth in a river in Vietnam and discovered a new species, a study said. Photo from Hieu Do Quang via Unsplash In a river of southern ...