Adult macaroni penguins (Eudyptes chrysolophus) porpoising for speed while traveling to breeding colony, South Georgia, Polar Regions

macaroni penguins porpoising breeding colony south georgia polar regions wildlife ocean travel eudyptes chrysolophus animal behavior aquatic sea nature group movement speed adult penguins marine life southern ocean birds colonies social behavior ecosystems coastal journey summer seabirds hunting habitat flight nature reserve reproduction nesting expeditions aquatic mammals marine ecology colony dynamics cute animals environment biodiversity natural habitat fauna antarctic cold climate penguin behavior surface splash swimming