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A jellyfish has no bones, no heart, and no brain.

A jellyfish has no bones, no heart, and no brain.

It is mostly made of water and simply drifts along with the ocean currents.

🐟 All Ocean Animals facts →

More facts about Ocean Animals

Octopuses have three hearts and blue blood. Octopuses have three hearts and blue blood. A seahorse dad is the one who carries the babies. A seahorse dad is the one who carries the babies. A pufferfish can puff up like a balloon. A pufferfish can puff up like a balloon. Clownfish live safely among the waving arms of a sea anemone. Clownfish live safely among the waving arms of a sea anemone. Sea otters hold hands while they sleep so they don't float apart. Sea otters hold hands while they sleep so they don't float apart.