Adult bull killer whale (Orcinus orca) surfacing in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America

killer whale orca adult bull chatham strait southeast alaska pacific ocean marine mammal dorsal fin wildlife nature ocean surfacing tranquil waters alaska north america predator cetacean aquatic swimming sonar conservation eco tourism whale watching oceanography biodiversity marine ecology animal behavior natural beauty underwater marine conservation blue water fins natural habitat pacific northwest wildlife observation orca pod ocean animals underwater world sea creatures orca whale endangered species marine biology fins up marine environment ocean surface marine adventure nature exploration wild animals eco friendly habitat protection