Mauisaurus was named after the Maori god Maui, who pulled the islands of New Zealand up from the sea floor with a fish hook, so already you know this thing is going to be enormous. The neck of Mauisaurus measured up to 49 feet long; the longest proportionate (and really, “actual”) neck of any living thing aside from some sauropod dinosaurs. Their overall length was about 66 feet, and that ridiculously long neck had plenty of vertebrae, implying that it was flexible. Imagine a snake strung through a sea turtle with no shell, and you have an approximate idea of what this thing looked like.

It lived back in the Cretaceous era, meaning that creatures that jumped in the water avoid Velociraptors and Tyrannosaurs had to contend with these; the jury is out on which is worse. As far as science can tell, Mauisaurus was limited to the New Zealand area, showing that the area that would one day become Australia and its neighbors was always a land of terror.