Then there were killer sperm whales, a now-extinct type of sperm whale. They grew as large as megalodon and had even bigger ...

it's closer in length to a modern sperm whale. Its stomach may have held 10,000 litres, that's enough for it to have eaten 20 whole cows...if cows swam in the sea. How big are the megalodon's ...

as evidenced by whale skulls that exhibit bite marks from various shark species, including the great white shark and ...