A 52-foot, life-size model of a Carcharocles megalodon shark is ... Its serrated teeth were handy for slashing through skin, fat, muscle and bone as it ambushed its prey from the side or from ...

When you think about sharks, the first thing that might come to mind are huge jaws filled with rows of deadly-looking teeth. But shark teeth come in many shapes and sizes. They can tell us how these ...

Our study was one of the first to date Florida coastal deposits using fossil shark teeth and a technique that looks at variations in ocean strontium. Strontium is a chemical element that occurs ...

Remarkably, fossil shark teeth are also incredibly abundant. Sharks ruled the earth's oceans for 400 million years, and every individual grows and sheds thousands of teeth in their lifetime.

The ratios of strontium isotopes in fossil shark teeth can be used to better understand how coastal environments evolved in ancient times, according to our newly published work. Our study was one ...

Conservation groups are celebrating a bill that prohibits the capture, killing or entanglement of sharks in Hawaii waters, though some shark researchers say it’s tough to enforce and that ...