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

gentoo penguin pygoscelis papua porpoising swimming antarctic peninsula southern ocean polar regions wildlife marine life aquatic bird speed behavior animal behavior antarctica colony ocean cold climate penguin diving swimming techniques natural habitat seabird sea surface flippers agility animal kingdom conservation nature ecosystems environment cold water flightless bird coastal rookeries habitat biodiversity research food sources predator prey adaptation migration aquatic mammals penguin colony antarctic landscape exploration natural world oceanography ecological studies habitat preservation