An adult bull killer whale (Orcinus orca) surfacing in Johnstone Strait, British Columbia, Canada, Pacific Ocean, North America

killer whale orca adult bull surfacing johnstone strait british columbia pacific ocean north america marine life wildlife cetacean ocean nature mammal aquatic dorsal fin marine biology endangered species conservation habitat sea water north pacific animal behavior orcinus orca dorsal splashes ecosystem oceanic environment animal sighting marine mammals deep water ocean surface wildlife encounter natural behavior indigenous species underwater world biodiversity ocean exploration marine conservation orca pod whale watching marine ecosystem coastal region natural habitat orca behavior ocean fauna ocean waves large mammals orca experiences