Lizards have one. Elephants have one. Even
fish have one. You have one, too! What do you all
have? You all have skeletons.
Skeletons are the bones inside animals' bodies.
The skeleton is a frame that has muscles, blood
vessels, and skin wrapped around it. Skeletons
give vertebrates-humans and
many other
animals-their shape. You can identify many
animals just by looking at their skeletons.
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