As the top predator of its day, megalodon feasted on small whales, sea turtles ... he realized that tongue stones were in fact prehistoric shark teeth that belonged to something much bigger.

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 ...

Sharks have ruled the Earth’s oceans for 400 million years and recent research on fossilized shark teeth has led to the ...

Remarkably, fossil shark teeth are also incredibly abundant. Sharks ruled the earth's oceans for 400 million years, and every individual grows and sheds thousands of teeth in their lifetime.

Emma Bernard, a curator of fossil fish at the Museum, says, 'Shark-like scales from the Late Ordovician have been found, but no teeth. If these were from sharks it would suggest that the earliest ...