Data Deficient Mammal
Orca
The ocean's top predator
Read the guideSmartest Animals
Intelligence in animals shows up as problem-solving, communication, memory, and social learning. These are the brainiest species in our guide, ranked by their intelligence rating.
Data Deficient 
Least Concern Mammal
Bottlenose Dolphin
One of the ocean's most intelligent animals
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Critically Endangered Mammal
Gorilla
The largest living primate
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Endangered Mammal
Chimpanzee
Our closest living relative
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Endangered Bird
African Grey Parrot
One of the most intelligent talking birds
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Endangered Mammal
African Elephant
The largest land animal alive today
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Critically Endangered Mammal
Orangutan
The great ape of the Southeast Asian rainforest
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Least Concern Bird
Common Raven
One of the world's most intelligent birds
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