Highly intelligent marine mollusks including octopuses, squids, and cuttlefish, characterized by tentacles, advanced eyes, and remarkable color-changing abilities. They are active predators with complex behaviors.
From Greek 'kephale' meaning 'head' and 'podos' meaning 'foot', literally 'head-foot', describing how their arms/tentacles emerge directly from their head region. The term was coined in the early 19th century.
Cephalopods are the aliens of our own planet, with three hearts, blue blood, and the ability to change color and texture instantly to match their surroundings! An octopus has more neurons in its arms than in its brain, giving each arm a kind of independent intelligence.
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