VENICE, Fla. - A recent diving trip off the coast of Florida resulted in an ancient discovery. Kristina Scott found a 6-inch megalodon shark tooth while fossil diving in Venice. She said she's been ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The prehistoric ...

Add Yahoo as a preferred source to see more of our stories on Google. One of a blacktip reef sharks’ top teeth as seen under a scanning electron microscope. “It’s not only shells, corals, and mussels ...

(THE CONVERSATION) Most kids have a natural curiosity about sharks − especially their sharp and abundant teeth. Our team had the idea to use the appeal of this charismatic apex predator to teach how ...

At the forefront of hit movies like “Jaws,” “47 Meters Down” and “Sharknado,” sharks are often represented as fearsome, dangerous creatures — despite posing a statistically low risk to humans.

Shark tooth fossils in sandstone matrix, Lamna obliqua, Eocene Epoch (56 to 34 million years ago), Morocco, (Specimen courtesy of Ron Stebler, Scottsdale, Arizona, USA), (Photo by Wild ...

Shark teeth could lose their cutting edge as oceans become more acidic, new research warns. Scientists in Germany say rising carbon dioxide levels may erode the very weapons that predators rely on for ...

PORTLAND, Maine — Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth that regrow throughout their lives. But changes in the ocean's chemistry could put those ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Christine Wusylko, University of Florida and Pavlo Antonenko, University of Florida ...