Geologists near Starkville found a bone of a Mosasaurus hoffmannii, one of the biggest species of mosasaurs, which could reach lengths of 50 feet.

"Comparing the massive sizes of mythical sea monsters. How to Survive is a Webby ... The universe has thrown us a curveball': Largest-ever map of space reveals we might have gotten dark energy ...

A baby colossal squid was filmed in the deep sea by an ocean expedition near Antarctica. The world's largest squid has eluded ...

It was more like a dinosaur that lived like a giant river monster. This animal is still swimming around today. Blue whales are the biggest animals ever ... But unlike other sea reptiles, it ...

New footage filmed 600 metres below the surface of the Southern Atlantic Ocean shows rare juvenile from world's heaviest ...