Giant megalodon sharks may have sparred with their jaws

Fossil teeth of extinct megalodon sharks have grooves made by other megalodon teeth, hinting at violent encounters between these giant predators

​Fossil teeth of extinct megalodon sharks have grooves made by other megalodon teeth, hinting at violent encounters between these giant predators Fossil teeth of extinct megalodon sharks have grooves made by other megalodon teeth, hinting at violent encounters between these giant predators