Endangered Mammal
Blue Whale
The largest animal that has ever lived
Read the guideOcean Animals
The ocean is home to the largest and some of the most powerful animals on Earth. These marine and coastal species in our guide spend much or all of their lives in or around the sea.
Endangered 
Least Concern Mammal
Humpback Whale
The acrobatic singer of the seas
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Endangered Fish
Shortfin Mako Shark
The fastest shark in the ocean
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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 Invertebrate
Octopus
The shape-shifting genius of the sea
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Endangered Reptile
Green Sea Turtle
The gentle, long-lived grazer of tropical seas
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Endangered Mammal
Sea Otter
The tool-using keystone of the kelp forest
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Near Threatened Bird
Emperor Penguin
The largest penguin, built for the Antarctic winter
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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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Vulnerable Mammal
Polar Bear
The largest land carnivore, ruler of the Arctic
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Least Concern Reptile
Saltwater Crocodile
The largest living reptile and most powerful bite on Earth
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