I WONDER - How Do Fish Float? Me Pregunto - Cómo Flotan Los Peces?

The video explains how fish use an organ called the swim bladder to float without swimming. This organ contains air, allowing fish to stay buoyant. In contrast, sharks lack a swim bladder, requiring them to swim constantly to avoid sinking, even while sleeping.

What organ do fish have that helps them float?

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What is the function of the swim bladder in fish?

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How does the swim bladder help fish stay afloat?

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Why do sharks not need a swim bladder?

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What happens to sharks when they sleep in relation to swimming?

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