In rare video footage, a male whale shark has been spotted biting at his female partner during courtship. Before now, we knew very little about the secret sex lives of the world's largest fish ...

Palaeontologist Mario Urbina said: "There are not many complete shark (fossils) in the world." Mario also noted that sardines were likely the staple of the Cosmopolitodus Hastalis' diet.

Diving in the worlds biggest shark sanctuary & snorkeling with whales ...

What are the deadliest animal in the world? We've done the research! Jump in to read about which are the ultimate deadliest animals!

Whale sharks (Rhincodon typus) are the biggest fish on the planet, with some clocking in at 60 feet long. Now, for the first time, we might have some clues to how these endangered gentle giants mate.