An artist's impression released by the Natural History Museum in Oslo shows the pliosaur's cucumber-sized teeth.

A reseacher discoveres parts of the fossilised skeleton poking out of the side on an island in the Arctic.

Size comparison showing a killer whale, blue whale, 'The Monster' pliosaur and a human diver.

A 150-million-year-old sea reptile that grew to a massive 15m in length, has been discovered on an island in the Arctic.