Ever wonder why sharks have so many differently shaped teeth or why they keep regrowing throughout their lives? Dr. David ...

While fans of the movie and novel “Jaws” might envision an encounter with a 22-foot great white ... largest shark ever to exist and is well known for its large, evenly serrated teeth ...

Yet back then, any one of these creatures could become prey to the ocean's fiercest apex predator: the megalodon, a giant shark ... and the great white, with the two having similar teeth ...

Megalodon’s teeth resemble those of a modern great white shark, so some scientists previously concluded that the two sharks had a similar stout body shape. Shimada followed this hypothesis when ...

The tip of a megalodon tooth is preserved in this fossil whale rib bone Most reconstructions show megalodon looking like an enormous great white shark, Carcharodon carcharias. This is now believed to ...

The replicas seen at many museums are all based on size estimates from teeth or other partial fossils. Photograph by Alexander Demianchuk, Reuters/Redux Like great white sharks, the megalodon had ...