Divers on underwater scooters and a common cuttlefish (Sepia officinalis); Palau, Micronesia PacificStock
This male green sea turtle (Chelonia mydas), an endangered species, is being followed closely by a spotted unicorn fish (Naso brevirostris); Hawaii, United States of America PacificStock
killer whale, or orcas, Orcinus orca, cow and calf swimming in Resurrection Bay, Kenai Fjords National Park, outside Seward, southcentral Alaska, spring PacificStock
A pair of humpback whales (Megaptera novaeangliae) just below the surface; Hawaii, United States of America PacificStock
A split image of a pair of humpback whales (Megaptera novaeangliae) underwater in front of the West Maui Mountains just south of Lahaina; Maui, Hawaii, United States of America PacificStock