The giant-toothed shark, which became extinct 2 6 million years ago, is more than 15 meters long and has a powerful bite force, and its 3-meter-wide jaw can crush a car  However, a recent study shows that giant-toothed sharks prefer minke whales less than 5 meters long rather than larger baleen whales  However, due to climate change, the population of minke whales has plummeted
Giant tooth sharks also like to prey on smaller seals and now extinct dwarf sperm whales
 Based on this, the researchers believe that giant-toothed sharks became extinct due to lack of food