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

It was like being hit by a freight train," he said in an interview with the Australian Broadcasting Corporation's (ABC) ...

This species of shark has needle-like teeth. Long, sharp teeth are excellent at gripping small or medium-sized fish and squid. The bull shark has needle-like teeth that are slightly serrated, for ...

The shark’s distinctive teeth were identified as a new-to-science species during a Paleontological Resource Inventory at Mammoth Cave National Park in southern Kentucky this year. The inventory ...

(Graham Thompson/CBC) A Saint John auction house has opened online bidding on a collection of megalodon shark teeth that are millions of years old. Sarah Jones, curator at Jones Auction House ...

The clicking of flattened teeth, discovered by accident, could be “the first documented case of deliberate sound production in sharks,” evolutionary biologist Carolin Nieder, of Woods Hole ...

With powerful jaws and sharp teeth, a bite from a great white can be fatal, especially if the shark returns for a second ... the results can be severe. Bull sharks are highly aggressive and ...

Unlike some sharks that take a bite and let go, the bull shark holds on and thrashes before sawing into its prey with its serrated teeth. They are found in both salt and freshwater and is ...

Weirdest of all was probably Helicoprion (bottom), which had a lower jaw shaped like a buzz saw and no teeth at all in its ... One species, the bull shark, can also survive in fresh water and ...

Dave Pearson is recalling the moment an almost 10-foot bull shark took a huge chunk out of ... Conversations interview program "The top teeth just proceeded to tear the forearm muscle straight ...

Dave Pearson is recalling the moment an almost 10-foot bull shark took a huge chunk out of his left arm while ... Conversations interview program "The top teeth just proceeded to tear the forearm ...