Livyatan was essentially a very large sperm whale with large teeth on the upper and lower half of their jaws that used echolocation to find prey, and megalodon was similar to a great white shark ...

These fossilized Megalodon jaws give us a glimpse of theses creatures’ might. ©Mulevich/Shutterstock.com The sperm whale may be the largest apex predator on the planet today, but this was not always ...

Then there were killer sperm whales, a now-extinct type of sperm whale. They grew as large as megalodon and had even bigger teeth. They were also warmblooded; that meant they enjoyed an expanded ...

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 ...

It is freaking staggering. The otodus megalodon — you know, the infamous meg you've likely heard of — was so large it could have snacked on orcas, colloquially known as killer whales. That's according ...