Did you know?
A 360-million-year-old sea monster that was once thought to be as big as a bus was actually less than half that long, but just as chunky. The bony fish Dunkleosteus terrelli was one of many superpredators that prowled the oceans during the Devonian period. This armoured fish, which prowled the oceans that once covered modern-day Ohio, had blade-like jaws that could snap shut with 3,600 kilograms of force. The first D. terrelli fossils were discovered 150 years ago along the shores of Lake Erie, and the largest known specimen resides in the collections of the Cleveland Museum of Natural History.