Sea lions are marine mammals. Wild sea lions live in the ocean, and some sea lions live in aquariums. Wild sea lions living in the ocean must be aggressive, because they are carnivorous animals, will prey on a variety of animals in the ocean as their food, such as fish and cephalopods and so on. When they hunt, they are more aggressive. In particular, male sea lions are more aggressive than female sea lions.
Then there are sea lions living in aquariums. After training, their aggression will be reduced and their personality will become more docile. At this time, they do not need to hunt for themselves, and the breeder will provide them with food regularly. Therefore, compared with wild sea lions, sea lions in captivity are less aggressive.
As mentioned above, the aggression of wild sea lions is relatively strong, especially male sea lions. However, sea lions generally do not attack humans. But they have a certain sense of territory, and they will attack humans if they feel that humans are encroaching on their territory, or if they feel that humans are threatening their lives. In addition, they are not too hostile to humans, and sometimes they may play with humans. However, they can also hurt people when they play with them, because they don't know how to control their strength, and sometimes they accidentally hurt people.
Sea lions living in aquariums are relatively gentle and basically not aggressive. They generally do not attack people. Under the training of the breeder, they may also complete some interactive activities with humans.