Since Siberian tigers live in such cold regions, an adult needs to eat at least of food every day to survive, but adults can eat as much as 50 kilograms of meat. Siberian tigers are carnivores. Siberian tigers are apex predators. Siberian tigers feed mainly on wild boar, moose and deer. If regular prey is unavailable they will eat fish, rodents, rabbits and even small bears. During normal conditions, around 50 percent of the tiger's diet will be of wild boar.