Ancient Japanese 'dragons' ruled the oceans

Researchers have classified a new species of mosasaur, an ancient apex predator, based on fossils discovered in Japan. Named "Wakayama Soryu" or "Wakayama Blue Dragon," this mosasaur is the most complete skeleton found in Japan or the northwestern Pacific. It had unique features, including large rear flippers and a dorsal fin, challenging experts' understanding of how these prehistoric reptiles swam. The discovery opens up new possibilities for studying mosasaurs and their behavior in the late Mesozoic Era.