Orca (Orcinus orca) pod surfacing in Chatham Strait, southeast Alaska, USA.

orcinus orca killer whale delphinidae cetacean mammal odontocete southeast alaska pacific ocean mammals cetacea cetaceans odontoceti tooth toothed ocean oceanic sea surface us united states america american north america north american swimming alaskan adult adults blowhole blowholes blow hole blow holes blow hole blow holes dorsal fin fins group groups social breathe breathing exhale exhalation exhaling