Brown bears can be found in the northern parts of Russia, Alaska, and Canada, with the largest concentration east of the Ural Mountains in the Siberian forests. Brown bears have a wide-ranging diet, depending upon the season. They consume mosses, fungi, herbs, grasses, and fruits as well as insects, birds, and fish, especially salmon during their spawning run.
Brown bears are solitary, powerful, sometimes aggressive predators. Excellent swimmers, they often feed on spawning salmon, but these omnivores eat anything nutritious. They have acute senses of hearing and smell, but poor eyesight.