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Common lionfish (Pterois miles), front view, Naama Bay, Ras Mohammed National Park, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa

A Coconut Octopus (Amphioctopus marginatus), a species that gathers coconut and mollusk shells for shelter, Lembeh Strait, Sulawesi, Indonesia, Southeast Asia, Asia

A Coconut Octopus (Amphioctopus marginatus), a species that gathers coconut and mollusk shells for shelter, Lembeh Strait, Sulawesi, Indonesia, Southeast Asia, Asia

A Coconut Octopus (Amphioctopus marginatus), a species that gathers coconut and mollusk shells for shelter, Lembeh Strait, Sulawesi, Indonesia, Southeast Asia, Asia

A juvenile hairy frogfish (Antennarius striatus) of approximately 5mm long, Lembeh Strait, Indonesia, Southeast Asia, Asia

Schooling brownstripe snapper (Lutjanus vitta), Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia

A bright pink purple paddle-flap scorpionfish {Rhinopias eschmeyeri) on volcanic sand, Tulamben, Bali, Indonesia, Southeast Asia, Asia

Hairy squat lobster (Lauriea siagiani) amongst a pink and orange colored sponge, Tulamben, Bali, Indonesia, Southeast Asia, Asia

Green sea turtles (Chelonia mydas) common around Pom Pom Island, an important nesting grounds for these marine turtles, Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia

Galapagos fur seal (Arctocephalus galapagoensis) underwater at Isabela Island, Galapagos Islands, Ecuador, South America

The Caribbean reef squid (Sepioteuthis sepioidea), in the Caribbean Sea, Bonaire, St. Eustatius and Saba, Central America

Clown anemonefish (Amphiprion percula), in anemone (Heteractis magnifica), Philippines, Southeast Asia, Asia

A great barracuda (Sphyraena barracuda) comes close to the reef to be cleaned by a cleaner wrasse, Hawaii, United States of America, Pacific, North America

A pod of spinner dolphins (Stenella longirostris) in Hawaii, United States of America, Pacific, North America

These striped catfish (Plotosus lineatus) have a venomous spine in front of their pectoral fin, Philippines, Southeast Asia, Asia

A blue-spotted sea urchin (Astropyga radiata), Hawaii, United States of America, Pacific, North America

A humpback whale (Megaptera novaeangliae) glides through the blue waters of Hawaii, United States of America, Pacific, North America

A humpback whale calf (Megaptera novaeangliae) heading to the surface, Hawaii, United States of America, Pacific, North America

Trumpetfish (Aulostomus chinensis) attempting to conceal itself in a school of milletseed butterflyfish, United States of America, North America

Tropical coral reef scene in natural lighting, Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa

Galapagos sea lions (Zalophus wollebaeki) underwater, Guy Fawkes Islands, Galapagos Islands, Ecuador, South America

Potato cod (Epinephelus tuku) (potato grouper) (potato bass), Cod Hole, North Ribbon reef, Great Barrier Reef, Queensland, Australia, Pacific

West Indian manatee (Trichechus manatus) underwater in Homosassa Springs, Florida, United States of America, North America

Whale shark (Rhincodon typus) swimming past a jellyfish (Thysanostoma loriferum), Honda Bay, Palawan, The Philippines, Southeast Asia, Asia

Scuba diving instructor and student completing hovering skills in shallow water, Naama Bay, Ras Mohammed National Park, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa

Humpback whale (Megaptera novaeangliae), underwater, Hawaii, United States of America, Pacific, North America

Humpback whale (Megaptera novaeangliae), underwater, Hawaii, United States of America, Pacific, North America

Bigfin reef squid (Sepioteuthis lessoniana) tending eggs which have been laid along a buoy line, taken at dusk, Lembeh Strait, Indonesia, Southeast Asia, Asia

Colorful soft corals (Dendronephthya sp.) adorn the stunning reefs of southern Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia

The reef manta ray (Manta alfredi) with yellow pilot fish in front of its mouth, Dampier Strait, Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia

Galapagos penguin (Spheniscus mendiculus) underwater at Isabela Island, Galapagos Islands, Ecuador, South America

A young humpback whale (Megaptera novaeangliae), underwater, Hawaii, United States of America, Pacific, North America

A cleaner shrimp (Lysmata amboinensis) inspecting a honeycomb moray eel (Gymnothorax favageneus), Philippines, Southeast Asia, Asia

A pajama nudibranch (Chromodoris quadricolor) attempts to climb up the side of a sea cucumber, Philippines, Southeast Asia, Asia

A group of goose barnacles (Lepas anatifera) attached to a buoy off the Big Island of Hawaii, United States of America, Pacific, North America

Endangered Florida manatee (Trichechus manatus latirostris), at Three Sisters Spring in Crystal River, Florida, United States of America, North America

Florida manatees (Trichechus manatus latirostris), gather at Three Sisters Springs in Crystal River, Florida, United States of America, North America

Green sea turtles (Chelonia mydas), an endangered species, Hawaii, United States of America, Pacific, North America

Humpback whales (Megaptera novaeangliae), underwater off the coast of Hawaii, United States of America, Pacific, North America

Green sea turtle (Chelonia mydas) underwater with snorkeler, Maui, Hawaii, United States of America, Pacific

Green sea turtle (Chelonia mydas) underwater with snorkeler, Maui, Hawaii, United States of America, Pacific

A green sea turtle (Chelonia mydas) makes its way to the surface off Maui, Hawaii, United States of America, Pacific, North America

Bigeye emperor (Monotaxis grandoculis), Maui, Hawaii, United States of America, Pacific, North America

The very capable teeth in the jaw of a stout moray (Gymnothorax eurostus), Hawaii, United States of America, Pacific, North America

A close-up of the mouth of a whitemouth moray eel (Gymnothorax meleagris), showing its needle sharp teeth, United States of America, North America

Giant hermit crab (Petrochirus diogenes), off Singer Island, Florida, United States of America, North America

Spotted eagle ray (Aetobatus narinari) underwater, Leon Dormido Island, San Cristobal Island, Galapagos Islands, Ecuador, South America

Adult whitetip reef shark (Triaenodon obesus) with cleaner wrasse, Roroia, Tuamotus, French Polynesia, South Pacific, Pacific

Lion's mane jellyfish, Cyanea capillata, is the largest known species of jellyfish. Petersburg, Southeast Alaska, United States of America

Oceanic manta ray (Manta birostris) feeding near the surface, Honda Bay, Palawan, The Philippines, Southeast Asia, Asia

A group of snorkellers observing spinetail devil rays (Mobula mobular) engaged in sexual courtship in Honda Bay, Palawan, The Philippines, Southeast Asia, Asia

Snorkellers observing spinetail devil rays (Mobula mobular) engaged in sexual courtship in Honda Bay, Palawan, The Philippines, Southeast Asia, Asia