triangular teeth. ‘Sharks have been around for 420 million years,’ explains Emma Bernard, our Fossil Fish Curator. ‘In that time, there have been as many as 5,000 different species. One of the reasons ...

They had long, pointed snouts and teeth designed to catch and tear apart prey, but most of the sharks in this genus were incredibly small! Most species measured around just over 2 feet (65 cm).

(CN) — During an extensive search for new fossil species, Jun Ebersole found one in an old box. “A few years ago, I was looking through the historical fossil collections at the Geological Survey in ...

sharks and rays never run out of teeth, as they are endlessly replaced. Both sharks and rays have gills. Most have five but a few species of shark have six or even seven. On a shark the gills are ...

Do all sharks have sharp, pointy teeth? Myth! Sharks have teeth adapted to their individual diets. While some species like lemon sharks do indeed have pointed teeth to help catch their slippery ...

Greenland sharks have narrow, pointed upper teeth and broader, squared teeth on the lower jaw. Holding large prey in position with their upper teeth, they roll their head in a circular motion ...

One of only three filter-feeding shark species, basking sharks eat tiny organisms ... Scientists believe their teeth—which are not used in feeding—are instead part of the mating process.