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  1. Starfish have no brains and no blood. Their nervous system is spread through their arms and their blood is actually filtered sea water.
  2. When starfish lose an arm, they can grow it back! This process is called "Autotomy." After the arm comes off, the cut area begins to heal and a new arm begins to grow. The arm that is broken off will die. However, in some cases, not only do the starfish grow new arms, but the arms that have been cut off grow new starfish.
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14y ago

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