
Howstuffworks.com talks more in depth about this. This is the beginning of their article. If a starfish loses an arm, it's no big deal. A starfish has regenerative capabilities, so the starfish can grow a new arm. In fact, you can cut a starfish in half and each piece could regenerate, forming two separate starfish! Lots of other organisms have ways to regenerate. Some lizards and salamanders can grow new tails and some insects can grow new legs.
Wouldn't it be great if we could repair ourselves in the same way? Imagine losing an arm in an accident, and then growing a new one two weeks later! For more information and to see the rest of this article, CLICK HERE.

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