The Megalodon may have been the top predator in its time, but it had fierce competition in the form of Livyatan melvillei, a massive prehistoric sperm whale. This whale was no gentle giant – it ...

Estimates suggest megalodon actually grew to between 15 and 18 metres in length, three times longer than the largest recorded great white shark. It may have been comparable in length to today's ...

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 ...