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Marine Mammal

Dolphins

The ocean's most social genius.

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About Dolphins

Dolphins are among the most intelligent animals on Earth, with complex social structures, sophisticated communication, and problem-solving abilities that continue to astonish researchers. They are the only non-human animals known to call each other by name.

Fun Facts

  • →Dolphins call each other by unique "signature whistles" — essentially names.
  • →Dolphins sleep with one eye open, resting one brain hemisphere at a time.
  • →Dolphins have been observed teaching their young to use tools (sponges to protect snouts while foraging).
  • →Dolphins can recognize themselves in mirrors — a sign of self-awareness.
  • →Some dolphin populations have distinct cultural traditions passed down through generations.

Quick Facts

Scientific family
Delphinidae
Species
Over 40 species
Lifespan
20–60 years depending on species
Brain size
Second largest brain-to-body ratio after humans
Speed
Up to 60 km/h (bottlenose)
Communication
Unique signature whistles (names)