megalodon

The necklace was discovered during an underwater scanning project that snapped 700,000 images of the Titanic wreck using submarines.

"I thought right away that it looked similar to a shark's tooth, but was confused because it was quite a large size," Rachel Shill Cook told Newsweek.

Molly, 9, dove into freezing cold water to retrieve the 5-inch tooth, the largest to be found in the area.

"Part of its root was sticking up a bit and I pulled it up," a diver said. "Later on the boat, I realized it was bite marks."

Over 750 fossilized shark teeth were found almost 18,000 feet below the ocean surface.

Researchers have identified what looks like a fossil from the extinct shark—and the discovery could provide evidence about its migratory habits.

Paleontologist Ashby Gale told Newsweek that the tooth, belonging to the biggest shark species to ever live, dates back between 3.6 and 15.9 million years.

Researchers investigated the bones of a cetacean (a group of aquatic mammals that includes whales, dolphins and porpoises) that showed evidence of severe trauma.

Teeth are the most common megalodon fossil to be discovered. Some are bigger than a human hand.

Based on the dimensions on the scanner, the team estimated the shape was "weighing in at 40 tons!"

A fossil hunter has found huge teeth from the prehistoric megalodon shark, one of the largest and most powerful predators ever to have lived.

Megatoothed sharks were the largest sharks of all time and were significantly bigger than today's great white sharks.

The ultimate predator of predators was a massive 50-foot-long shark that was so powerful it even ate predators that ate other predators.

Ancient great white sharks could have driven their massive megalodon cousins into extinction by stealing their prey, a new study has revealed.

The extinct shark is considered to be one of the largest and most powerful predators ever to have lived.

The largest megalodons lived in cooler waters found far away from the equator, scientists believe.

The sharks lived between 20 million and 3.6 million years ago and it is thought they could grow up to 60 feet long.

The extinction of the planet's biggest sharks offers fascinating insights into their contemporary apex predators, great whites.

A single tooth from this fearsome megalodon predator is bigger than a man's hand.

The huge extinct shark teeth can measure several inches in length and can be worth thousands of dollars.

A Florida man found a gigantic fossilized megalodon tooth while diving in Florida waters, months after getting attacked by a gator.

"It's my first whole megalodon tooth," said Jacob Danner, who spotted the fossil during an early morning walk.

Megalodons lived between 3.6 to 20 million years ago and could reach up to 49 feet in length.

The boy and his family were vacationing on a South Carolina beach when the huge fossil was uncovered.

Finder Matthew Basak hopes to sell the tooth for $6,000 or more. Many are already on sale for thousands.

Megalodon was the largest shark ever to have lived, potentially growing up to around 60 feet in length.

Missy Tracewell said she cried and jumped up and down "like a five-year-old" when she found the tooth of the prehistoric predator.

A 3-inch tooth was found on a dirt path in Eglin Reservation, northwest Florida. Paleontologists suspect it came from a quarry.

The megalodon could reach lengths of 48 to 60 feet and went extinct approximately 3 million years ago. A fossil of the prehistoric shark was found washed up in the sands of the Cayman Islands.

Some of the teeth could belong to the extinct shark megalodon—one of the largest and most powerful predators to have ever lived.