The bears will travel extensively throughout their territory to search for available food. Their ranges reflect their diet, and includes items in different parts of their range that are only found in certain times of the year, like fruits and berries. They will move as the availability of these food items changes. Contrary to popular belief, bears do not actually hibernate, they just go into dormancy. It is not considered hibernation because the bears' metabolic rate does not drop as much as in animals that do hibernate, and unlike true hibernators, they can awaken at any time during their dormancy.
Brown bears can be very aggressive, especially when defending their territory and food.
They will fight off packs of wolves and cougars to protect their food, and will fight other bears to protect their territory from intruders. However, bears will rarely attack humans. Bears use displays of flashing fangs, and will stand up on their hind legs to make themselves look bigger to other bears. Gaping jaws show off huge fangs that intimidate the rival bears, and usually run away to avoid injury. They also roar and leave scent marks on raised objects, especially around mating season.