The beluga whale is a kind of whale, and wild beluga whales generally live in the ocean. They are also farmed, for example, we can often see beluga whales playing with humans in aquariums. Belugas living in the ocean will eat some of the animals in the ocean as their food. Specifically, their food is very rich. For example, a variety of fish, species are very rich, salmon, cod and so on can become the food of beluga whales. For example, cephalopods, squid and other crustaceans, as well as shrimp, crabs and other crustaceans, can become food for beluga whales. In addition, some large plankton in the ocean may become their food.
Belugas that live in aquariums have a specific diet. Generally, they do not eat plankton. They mainly eat fish and crustaceans. Their diet is simpler than that of belugas that live in the ocean. Belugas, whether living in the ocean or in captivity, can't eat food that's too big, because they're not too big, and they choke easily when they eat food that's too big.
The beluga whale is a kind of whale with a very gentle character. It is relatively friendly to human beings. They will not attack human beings on their own initiative, let alone eat people. Belugas living in aquariums will not eat people, because they are trained. In fact, the belugas living in the ocean will not eat people, they do not have the first human, and even sometimes will save human beings. However, if humans provoke the belugas, they may also attack humans. It may seriously injure human beings, but it usually does not eat human beings.