Why were mosasaurs good predertors?

Mosasaurs were effective predators due to their streamlined bodies, strong limbs adapted into flippers, and powerful tails, which allowed them to swim swiftly and maneuver easily in the water. Their sharp, conical teeth were designed for gripping slippery prey, such as fish and other marine reptiles. Additionally, their keen sense of sight and possibly acute hearing would have helped them locate and ambush prey in diverse aquatic environments. Overall, these adaptations made mosasaurs formidable hunters in their prehistoric oceans.