Ancient Battle Left 'Sea Monster' With Tooth Stuck in Its Face

About 75 million years ago, a mosasaur — a dolphin-like, predatory, marine reptile that lived during the dinosaur age — bit another mosasaur so hard that it left its tooth behind, embedded in its foe's face, new research finds. Now, paleontologists are studying the remains of the victim, a creature that sustained not one, but two attacks on its face, likely from different adversaries, said paleontologist Takuya Konishi, an assistant professor at the University of Cincinnati. "The spe