Seals are mammals and carnivores, that is to say, seals are carnivores in terms of their feeding habits. Therefore, they must be aggressive, and they can show their aggression when they hunt. Especially wild seals, they can be said to be a strong survival in the ocean, but also can be said to be a killer in the ocean, because they can use a variety of animals in the sea as their own food. Seals' main diet is fish, but they also eat cephalopods or crustaceans. Because of their sharp teeth, they are more aggressive and can prey on a lot of food.
In addition, there are also some seals living in the aquarium. These seals have been trained by the keepers, and are provided with food by humans. They do not have to hunt for food by themselves, but only need to eat regularly every day. These seals are less aggressive after training, but they are not completely non-aggressive.
As mentioned above, seals are aggressive, especially wild seals living in the ocean, when they hunt, aggression is very obvious. Although they are aggressive, their aggression is generally directed at the animals they prey on, and they will not attack humans. However, they will also be wary of humans, if humans are hunting them, or they mistakenly believe that humans are a threat to their lives, they may also attack humans.
Then there are the seals that live in aquariums. Because they can often see humans, they are already familiar with humans. In addition, after training, the aggression itself has been reduced, so the seals here will not attack humans, they are relatively friendly to humans.
