Mosasaurus was not a dinosaur – it was a marine reptile more closely related to modern monitor lizards and snakes than to any dinosaur.

The largest Mosasaurus, such as Mosasaurus hoffmannii, may have reached around 57 feet in length – longer than a school bus!

Fossil evidence confirms Mosasaurus really did hunt sea turtles – a sea turtle fossil with nearly 100 bite mark indentations matching a Mosasaur is on display at the University of Kansas.

Mosasaurus had two sets of teeth – one on the jaw and a second set on the roof of the mouth – to grip and swallow slippery prey.

Fossil evidence suggests Mosasaurus gave birth to live young in the open ocean, rather than coming ashore to lay eggs like sea turtles do today

Mosasaurus fossils have been found on every continent including Antarctica, proving it dominated oceans across the entire globe.

Modern sea turtles are direct descendants of the same turtle family that swam alongside Mosasaurus over 100 million years ago – making them one of Earth's oldest surviving animal groups.

Mosasaurus went extinct 66 million years ago during the same mass extinction event that wiped out the non-avian dinosaurs.