The shark experts we spoke with wouldn't put an exact value on the giant tooth Nastasio found, but they hinted that a megalodon tooth this big in size and also complete could be sold for thousands ...

Giant Shark Tooth Found Deep in the Ocean May Be Millions of Years Old Amanda Kooser Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET.

The largest shark to ever live was likely the mighty megalodon ( Otodus megalodon ), which swam in prehistoric oceans from 23 to 3.6 million years ago and is now definitely extinct. Paleontologists ...

Nowadays, you'd be hard pressed to find a modern white shark tooth this big. Large teeth come from large sharks, and sadly, large adult white sharks—measuring greater than 18 feet in length ...

Visit this unique beachside hiking trail in Maryland and find fossilized shark teeth while you swim!

Just how old and big was that shark? The tooth is at least 10,000 years old and appears to have come from the "upper jaw dentition from a shark that was probably in the neighborhood of 15 feet ...

The animals were so big their teeth fossils can be up to 7 inches long. However, Mellon said that searching for shark teeth in South Florida has been anything but discouraging. “It makes it more ...

They were big, too. The 1½-inch-long shark tooth discovered by the Martinez brothers belonged to a shark that was "probably in the neighborhood of 15 feet long," estimated Josh Moyer, resident ...

Fossilized great white shark tooth in Narragansett found by beachcombing brothers Oliver and Sebastian Martinez were beachcombing with their mom, Lauren, at Narragansett Town Beach when they found ...