Nature and Animals · Topic 118 of 125
Sea Urchins
⭐ MasteredSea urchins are spiny sea animals that live on the sea floor. They use their tube feet and spines to move, and they feed on algae and other small plants.
💡 Fun fact
Sea urchins have five-part symmetry, and their mouths are on the underside of their bodies.
All about Sea Urchins
Sea urchins are spiny sea animals that live on the sea floor. They use hundreds of tube feet and spines to move, and they feed on algae and other small plants. Their bodies are round and covered in sharp spines.
Sea urchins have five-part symmetry, and their mouths are on the underside of their bodies. Some sea urchins are eaten by people in certain countries.
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