Dugong
Dugong feeding
Sperm whale tail flukes
Florida manatee
Florida manatee taking air at surface
School of chevron barracuda
Florida manatee swimming
Grey seal
Manatee at surface
Brandt's cormorant
Brandt's cormorants
Loggerhead turtle
SCUBA diving with a hawksbill turtle
Napoleon wrasse and diver
Florida manatee feeding
Hippopotamuses in water
Hippopotamus
Sea goldie fish and a scuba diver
Beluga whales
California sea lions
Weddell seal
SCUBA diving, Indonesia
Malabar grouper
Southern elephant seal
Snorkellers stroking a manatee
Hawksbill turtle
Green turtle swimming
Diver close by to brain coral
Manatee swimming
Giant manta and diver
Angelfish and divers
Green sea turtle
School of fusiliers
Southern right whale's eye
Harp seal pup diving
Sperm whale
Sperm whale diving
Short-finned pilot whale calf
Bottlenose dolphin bow-riding
Risso's dolphin
Dolphin
Humpback whale mother and calf
Humpback whale calf
Diver filming a humpback whale calf
Humpback whale family
Humpback whale and calf
Spotted dolphin
Short-finned pilot whales
California sea lion in shallow water
California sea lions in shallow water
California sea lion pup
Short-finned pilot whale
Grey whales fluking
Diver and fish
Giant barrel sponge
Coral reef
Magnificent sea anemone
Green sea turtle (Chelonia mydas)
Hawksbill sea turtle
1790 Antique accurate Dugong skull
Scuba diver and oceanic manta ray (manta birostris), Cancun, Mexico
Yellowfin tuna
Green turtle
Olive Ridley turtle swimming
Hawksbill turtle swimming over a reef
Gentoo penguins (Pygoscelis papua).
Humpback whales
Southern fur seals
Short-finned pilot whale mother and calf
Short-finned pilot whale adult and calves
Short-finned pilot whale adult and calf
Fin whale tail
Humpback whale lobtailing
West Indian manatees
Diver with school of Blackfin barracuda
Scuba diver and Clark's anemonefish
Western blue groper
Diver holding a crayfish
Marine iguana
Humpback whale tail flukes
Green turtle swimming in open ocean
Scuba diver photographing a shoal of bluestripe snappers
Bottlenose dolphin
Australian sea lions
Australian sea lion
Blue whale
Shoal of fish and dolphins
Common dolphins herding fish
Common dolphins hunting fish
Humpback whale breaching
Perez's frog
Hippopotamuses submerged in a pond
Green turtle and diver
Diver with octopus, Japan Sea
European eel
Red Sea racoon butterflyfish
Octopus eye
Sea slug
Bigfin reef squid
Coelacanth fish, artwork
Coral reef, Mediterranean Sea
European barracuda
Amphipod crustacean
Clownfish in sea anemone
Burrowing snake eel
False clownfish in sea anemone
Leaf fish
Golden damselfish
Star puffer
Manta ray and remoras
Manta rays swimming over reef
Aquarium jellyfish tunnel
Manta ray swimming in open ocean
Broadclub cuttlefish
Square-spot fairy basslet
Chevron barracuda
Clown triggerfish
Atlantic spotted dolphins
Mobula rays
Fish and jellyfish over a coral reef
Mobula ray
Spotted eagle ray
Oriental sweetlips
Hammerhead shark
White-spotted guitarfish
Great white shark
Blacktip reef shark
Emperor angelfish
French angelfish
Fairy basslet
Glasseye fish
White grunt fish
Piranhas
Queen angelfish
Shaded batfish
Zebra batfish
Teardrop butterflyfish
Red sea bannerfish
Banggai cardinalfish
Sergeant major fish
Shortnose unicornfish
Juvenile yellow boxfish
Bigeye trevally fish
Bigeye Trevally fish
Yellowspot emperor fish