From behind, the spinosaurus looks no more threatening than a giant crested newt. Unfortunately for all the fish that encountered the creature, the other end of the 15-meter dinosaur had a set of jaws with serrated teeth.
In addition to tearing its prey 100 million years ago, the reptile also tears apart scientists’ understanding of how dinosaurs lived after the discovery of a new fossil with a well-preserved tail that shows it was adapted for hunting in the water.
The discovery, by an international team including British scientists, makes the spinosaurus the only known aquatic dinosaur. Other fierce creatures like the plesiosaurs that lived in the water are not classified as dinosaurs.
Spinosauraus aegypticacus was first discovered in 1912,