13776248 - There are three species of thresher sharks all characterized by the unmistakably elongated upper lobes of their tail fin. This one, the pelagic thresher shark (Alopias pelagicus), comes to Monad Shoal off Malapascua Island in the Philippines to visit cleaning stations on the reef; Malapascua Island, Philippines13786363 - Lighthouse, South Shields, Tyne And Wear, England13882237 - Close-up of a southern elephant seal bull (Mirounga leonina) on the beach growling as three king penguins (Aptenodytes patagonicus) stand by and watch; South Georgia Island, Antarctica13882249 - Southern elephant seal bull (Mirounga leonina) lying on his back on the beach flipping sand over his body to keep cool in the sunshine; South Georgia Island, Antarctica13882245 - Close-up of rivaling southern elephant seal bulls (Mirounga leonina) growling at each other fighting over their territory on the beach while two blue-eyed shags (Phalacrocorax atriceps) stand on a rock along the ocean shore in the background; South Georgia Island, Antarctica
