close-up of polar bear swimming in clear blue water, with ihead above the surface. fur is wet, and peaceful expression contrasts

polar bear swimming water animal wildlife nature aquatic fur wet arctic marine wild predator mammal blue clear peaceful environment cold ocean natural serene close-up ihead surface expression contrasts partially submerged showcasing bear swimming water animal wildlife nature aquatic fur wet arctic marine wild predator mammal blue clear peaceful environment cold ocean natural serene close-up habitat zoo ice endangered species conservation habitat