Close-up of three walruses scratching their skin with their flippers while laying on a beach in the Arctic Sea along the northern coast of the Svalbard Archipelago

walrus three scratching flippers bacteria skin beach big tusks close up walrus colony marine mammal animal pinniped large pinniped marine mammal grey sky svalbard wildlife atlantic walrus genus odobenus arctic wildlife marine mammals pinnipedia expedition arctic sea tusks svalbard cruise expeditions environment nature ecology population mammal sea polar climate outdoors landscape norway svalbard expedition natural environment panorama september climate change ocean outdoor cost travel