Brown bears are omnivores. Their recipes will change with the seasons. Generally speaking, plant food accounts for more than 60%, including roots, tubers, forage grass, grains, fruits and so on. The rest are animal foods, such as insects, rodents and ungulates (such as elk, reindeer, moose and bison). ), wild boar, fish and carrion, etc. Brown bears living around the coastline prey on salmon every year during the salmon spawning season. Brown bears in Alaska especially like to eat migrating salmon. Grizzly bears have a special preference for carrion.

Brown bears are good at swimming and fishing in fast-flowing rivers. They can also climb trees and walk upright, but their movements are not flexible enough and they usually walk slowly. This is because they always walk on the same side with their front and rear legs, but they also run very fast, and sometimes they can easily catch up with their prey.