Adelie penguins (Pygoscelis adeliae) hauled out onto the ice near Adelaide Island, Antarctica, Polar Regions

adelie penguins pygoscelis adeliae ice antarctica hauling out social behavior wildlife polar regions marine life natural habitat cold environment animal behavior avian species ice terrain seabirds fauna biodiversity cold season penguin colony ecosystem arctic antarctic region nature standing walking frozen landscape snow flightless penguin group habitat foraging survival cold climate icy habitats adaptation endangered species wildlife conservation ecological balance ecological niche migratory birds social structure breeding season group dynamics natural world arctic animals coastal regions frozen terrain