The octopus is not your average animal. With eight tentacles, three hearts, and nine brains, it’s no wonder they have been the subject of fascination for so long. While they may look like aliens from another planet, they are actually some of the most intelligent creatures in the ocean. They are masters of disguise, able to change their skin color and texture to blend in with their surroundings. Fun fact, octopus blood is actually blue because it contains a copper-based molecule instead of iron-based like humans.
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