* Other killer whales: Killer whales are the top predators in the ocean, but they can still be killed by other killer whales. This is especially true for young killer whales, which are more vulnerable to attack.
* Sharks: Sharks are another natural enemy of killer whales. Great white sharks and tiger sharks are known to prey on killer whales that are sick or injured.
* Humans: Humans are the biggest threat to killer whales. Humans hunt killer whales for their meat, skin, and blubber. They also pollute the oceans, which can harm killer whales and their prey.
Predators:
* No natural predators: Killer whales are the top predators in the ocean, and they have no natural predators.