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Are sharks fish?Loading...
All sharks are fish, but not all fish are sharks!Loading...
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Most fish are made of rigid bones. I'm an elasmobranch - my skeleton is made of cartilage, instead of bones. Cartilage is so flexible that I can touch my own tail!Loading...
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Tell me more! This is amazing!Loading...
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Activity:Humans have cartilage in their ears. Hold your ears and give them a wiggle - they should be bendy, but very strong!
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