An octopus is as smart as a five year old. Saw fishermen put a crab in a jar with a screw lid. They put an octopus down near it. The octopus crawled over, held the jar and unscrewed the lid to get the crab. It took it all of fifteen seconds to do it. This is just for information. You can decide if you still want to eat them. Lecture over.
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It eats the crab and becomes more nutritious for me. It's like an .io game, always bigger fish.