Then you add in their ability to change their size,shape,and color(allowing them to hide basically anywhere) and their high intelligence which allows them to build traps,solve puzzles/problems, and learn. XD
When your swimming in the ocean look out the blue ring octopus. Do not I repeat do not touch it or let it touch you ..... the ring contains position that can number your body and makes it hard to swim and then you die from drowning.
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