The hunters usually left the shark heads behind, allowing modern-day experts a glimpse of what the marine ecosystem was like in the past. The museum contains teeth ... the sand tiger shark-they ...

The location of the 8cm (3 inch) fossil was not widely known A tooth that belonged to an ancient giant shark has been stolen from a World Heritage Site in Australia, authorities have said.

Teeth are some of the best-preserved remnants of ancient sharks ... For example, he said, "extinct tiger sharks were 'generalists' feeding on a wide range of food types, just like the modern ...

Sand tiger sharks, also known as gray nurse sharks, have a deceivingly ferocious look. They are large-bodied and display a mouthful of sharp teeth that protrude in all directions, even when the ...

A prehistoric dugong preyed upon by an ancient ... were also found on the skull, along with a tiger shark tooth in the neck.

The only fossils that remain of the megalodon — the largest known shark ever to exist — are its human-hand-sized teeth. The prehistoric shark, which roamed Earth's oceans for over 20 million ...