But shark teeth come in many shapes and sizes ... And because they’re eating different foods, they need different types of teeth.’ Serrated teeth have a jagged edge - a bit like the blade of a bread ...

Clicklike noises made by a small species of shark represent the first instance of a shark actively producing sound ...

(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 ...

1:48 Shark teeth said to be millions of years old up for auction Sarah Jones, a curator at Jones auction house in Saint John, said the teeth are already drawing significant bids, some exceeding ...

The fossilized remains of a newly discovered ancient shark species found in the depths of Kentucky’s Mammoth Cave National Park reveal not the sharp, pointy gnashers you’d associate with Hollywood’s ...