Brown Bears are found across much of northern Eurasia and North America. They have long, thick fur, with a moderately long mane at the back of the neck. Brown bears have very large and curved claws, those present on the forelimbs being longer than those on the hind limbs. The brown bear is usually called the grizzly bear in North America. This species inhabits the broadest range of habitats of any living bear species. They seem to have no altitudinal preferences and have been recorded from sea-level to an elevation of 5,000 m. They are one of the most omnivorous animals in the world and has been recorded consuming the greatest variety of foods of any bear. Despite their reputation, most brown bears are not highly carnivorous, as they derive up to 90% of their dietary food energy from vegetable matter. Fruits and berries are indispensable for brown bears in most areas as a high-energy food stuff for bears which is necessary to survive the hibernation cycle. Brown bears will also commonly consume animal matter, which in summer and autumn may regularly be in the form of insects, larvae and grubs, including beehives. Brown bears usually avoid areas where extensive development or urbanization has occurred, unlike the smaller, more inoffensive American black bear which can adapt to peri-urban regions.