How Many Bones Do Sharks Have?
The answer is zero. Did you know they have a skeleton made entirely of cartilage rather than bone as in other fishes. A shark’s skeleton is made of cartilage and...
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How Is Cartilage Different than Bone?
How Is Cartilage Different than Bone? Your nose and your ears allow you to sense things, but there’s something else inside them that they share. The stuff under...
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