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In Peru and Chile there are “Living Rocks” that contain clear blood and can be eaten

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Pyura Chilensis – these rocks that are living and even breathing live on the coast of Chile and Peru. They have two siphons that let them inhale air and sea water and then exhale. Pyura Chilensis feed exclusively with sea water. Their organism filters out edible microalgae. It's surprising that "living rocks" contain clear blood and high concentration of vanadium.  

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