A Sydney aquarium has captured incredible and rare footage of sharks courting by biting each other's fins. Mary-Lou and ...

Sand tiger sharks, also known as gray nurse sharks, have a deceivingly ferocious ... Their staple is small fish, but they will eat crustaceans and squid as well. They occasionally hunt in groups ...

A NSW Department of Primary Industries (DPI) spokesperson confirmed the shark in his photo was a grey nurse which is critically endangered but relatively common in this area of the Camden Haven.