Endangered Mammal
Blue Whale
The largest animal that has ever lived
Read the guideAnimals of Oceans
Covering more than 70% of the planet, the oceans are home to the largest animal ever to live — the blue whale — along with sharks, dolphins, and sea turtles that roam every sea.
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Least Concern Invertebrate
Octopus
The shape-shifting genius of the sea
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Least Concern Mammal
Bottlenose Dolphin
One of the ocean's most intelligent animals
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Data Deficient Mammal
Orca
The ocean's top predator
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Least Concern Mammal
Humpback Whale
The acrobatic singer of the seas
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Least Concern Fish
Clownfish
The reef fish that lives among stinging tentacles
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Least Concern Invertebrate
Jellyfish
The ancient, brainless drifter of the seas
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Vulnerable Fish
Seahorse
The tiny fish where fathers give birth
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Endangered Reptile
Green Sea Turtle
The gentle, long-lived grazer of tropical seas
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Endangered Fish
Whale Shark
The largest fish in the world
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Endangered Fish
Shortfin Mako Shark
The fastest shark in the ocean
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Least Concern Fish
Atlantic Salmon
The fish that swims upriver to spawn
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Critically Endangered Fish
Hammerhead Shark
The shark with a head like a hammer
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Near Threatened Fish
Tiger Shark
The wide-ranging scavenger of warm seas
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Endangered Fish
Manta Ray
The gentle giant that flies through the sea
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Least Concern Fish
Atlantic Bluefin Tuna
The warm-blooded ocean speedster
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Vulnerable Fish
Bull Shark
The shark that swims into freshwater
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Least Concern Fish
Swordfish
The ocean hunter armed with a sword
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Least Concern Fish
Stingray
The flat-bodied ray with a venomous tail
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Least Concern Invertebrate
Cuttlefish
The color-changing master of camouflage
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Least Concern Fish
Blue Tang
The bright blue reef fish from Finding Nemo
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Least Concern Invertebrate
Starfish
The five-armed drifter that regrows its limbs
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Least Concern Invertebrate
Blue Crab
The swift swimming crab of Atlantic estuaries
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Least Concern Invertebrate
Peacock Mantis Shrimp
The reef brawler with the fastest punch in nature
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Least Concern Invertebrate
Coral
The tiny reef-building animals of tropical seas
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Least Concern Fish
Moray Eel
The reef-dwelling eel with hidden jaws
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Vulnerable Invertebrate
Atlantic Horseshoe Crab
The ancient living fossil with blue blood
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Vulnerable Bird
Atlantic Puffin
The colorful 'sea parrot' of the North Atlantic
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Least Concern Fish
Pufferfish
The fish that inflates into a spiky ball
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Least Concern Invertebrate
Giant Squid
The elusive deep-sea giant with enormous eyes
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Least Concern Invertebrate
Chambered Nautilus
The living-fossil cephalopod in a spiral shell
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Least Concern Invertebrate
American Lobster
The long-lived clawed crustacean of cold seas
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Least Concern Fish
Anglerfish
The deep-sea hunter with a glowing lure
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Least Concern Invertebrate
Hermit Crab
The crustacean that wears borrowed shells
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Least Concern Invertebrate
Sea Urchin
The spiny ball that grazes the seabed
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Vulnerable Invertebrate
Giant Clam
The reef-dwelling giant of the mollusks
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