Orcas have 10 to 13 pairs of interlocking teeth on each side of the upper and lower jaws for a total of about 48. Orca is commonly referred to as a killer whale or blackfish. They have a diverse diet of fish, sharks, and marine mammals such as sea lions, seals, walruses, and even other whales. But usually individual populations (or groups of whales) specialize on hunting a particular type of prey.

Most have at least 80, up to 100 teeth.The orca is a killer whale and they eat a lot of different things in the ocean -- some eat mostly fish, but others will eat marine mammals like seals, walruses, sea lions, and even big whales (as their name implies). For more information, take a look at this Wikipedia website: