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Brown bears are mostly solitary, although when they gather in numbers (like here in a zoo) form social hierarchies based on age and size. Adult male bears are p...
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Brown bears are mostly solitary, although when they gather in numbers (like here in a zoo) form social hierarchies based on age and size. Adult male bears are particularly aggressive and are avoided by adolescent and subadult males. Female bears with cubs rival adult males in aggression, and are more intolerant of other bears than single females. Young adolescent males tend to be least aggressive, and have been observed in nonantagonistic interactions with each other. During combat, bears use their paws to strike their opponents in the chest or shoulders and bite the head or neck.
Brown Bears (Ursus arctos), Attica Zoological Park, Athens, Greece, Europe
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