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

A rendering of Clavusodens mcginnisi, or “McGinnis’ nail tooth,” an ancient shark that stalked the ocean floor 340 million years ago. Rendering courtesy of the National Park Service A shark ...

More there’s something about Megalodon that grips the imagination like no other. Fossilized shark teeth are some of the most abundant remnants of prehistoric oceans, providing scientists with ...

and the triple-edged teeth are diamond-ground and specially hardened for long-lasting sharpness and fast, effortless, clean cuts. An excellent jamb saw! Great for trimming a thin strip from door ...

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 ...

The federally endangered smalltooth sawfish, which was approximately 14-feet long, had the tip of its long flat snout tangled ...

(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 ...