Brown bear cubs (Ursus arctos) playing and mock fighting on the beach near the Brooks River in Katmai National Park near Bristol Bay, Alaska, USA. Pacific Ocean

2 alaska animal age animal group animal animalia animals america american americas animal theme animal themes bear bears bristol bay brooks river brown bear brown bears babies baby animal baby animals baby color image color images color colour colour image colour images cub cubs day days habitats habitat horizontal horizontals immature juvenile katmai national park katmai katmai np landscape mammalia mock fighting mock fight mock fights mammal mammals natural phenomena natural phenomenon natural world natural worlds nature north america national park national parks no one no people no person no body no one nobody np nps outdoors outside play fighting play fights play fight playful behaviour pretend fighting pretend fights protected area protected areas pair play play behaviour playful playing river rivers to play two two animals us usa united states of america united states ursus arctos us usa water young young animal young animals yearling yearlings youngsters s057 s057 te