Adult gentoo penguin (Pygoscelis papua), porpoising for swimming speed near the Antarctic Peninsula, Southern Ocean, Polar Regions

gentoo penguin pygoscelis papua porpoising swimming southern ocean antarctic peninsula wildlife cold climate polar regions marine life fast swimmer antarctic fauna animal behavior bird flightless bird ocean water natural habitat adaptation predation hunting sealife coastal ecosystem ice snow conservation biodiversity penguin behavior underwater surfacing marine ecosystem antarctic wildlife animal movement nature wild animals exploration research ecology environment species aquatic flippers diving swimming technique antarctic continent polar exploration oceanic waters ecosystems natural world animal communication