A megalodon tooth next to a tooth of a great white shark. The largest megalodon tooth ever found is almost 18 centimetres long. By comparison, great white teeth are usually about five centimetres long ...

Ocean researchers have found the largest male great white shark ever recorded in the Atlantic ... and have seven rows of serrated teeth, which function like a conveyor belt to replace any teeth ...

The now-extinct megalodon shark may have been larger than first believed, reaching lengths of 80 feet (24.3 meters), according to a new study published in Palaeontologia Electronica last week. This is ...

At first glance, the world’s second largest fish might seem menacing: Its gaping mouth has six rows of teeth in its upper ... In reality, these placid sharks, found the world over, are totally ...

The newfound species is called Clavusodens mcginnisi, or McGinnis' nail tooth. The animal lived 340 million years ago and belonged to a group of sharks known as obruchevodid petalodonts ...

(CNN) — Paleobiologist Dr. Kenshu Shimada has been fascinated by fossil sharks, including the giant Otodus megalodon, since childhood — he found his first megalodon tooth at 13 years old.