Killer whales have no natural enemies. If there are, they can only be human beings. Killer whales belong to the top predators, that is, the top of the food chain. Since they are the top, they will not be eaten by other animals. Although it is not the largest, there are plenty of animals larger than it in the deep sea, such as blue whales, which are 3-4 killer whales long, but as baleen whales, it can only eat plankton and pose no threat to killer whales.

1. Humans: killer whales don't eat humans. There are many reasons for not eating human beings. First of all, from the perspective of killer whales, the possibility of meeting human beings is very low, so there is no special predation method, and naturally they will not eat. Moreover, in the inherited predation skills, there is no introduction of human beings, so they will not eat. In addition, killer whales can also feel the kindness of human beings, and know how to please in exchange for trust and food, so there is no need to eat people.

2. Large baleen whales: In the natural environment, killer whales basically do not eat large baleen whales. It should be noted here that although some baleen whales are very big in adulthood, their young whales are still very small, and these animals will still become the dishes of killer whales. Killer whales don't eat animals larger than them, mainly because it is difficult to hunt, and the other party may escape, so it is not worth the loss. However, young whales are often easy to catch, so certain strategies are often adopted to separate adult whales from young whales, so as to achieve the purpose of predation.