Teeth from sharks and rays can be used to study ... three species with different tooth structures: cownose rays, gummy sharks, and broadnose sevengill sharks. Despite the different tooth ...

The clicking behaviour has been described in the new study as the first documented case of a shark deliberately making 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 ...