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The Freeman
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http://io9.com/5426109/octopus-uses-coconut-shells-as-portable-armor
I for one welcome our new cephalopod overlords
ools aren't just for vertebrates anymore. The veined octopus has been spotted lugging around coconut shells to serve as mobile shelters, the first time scientists have observed tool use in an invertebrate species.
Humans living on the Indonesian coast frequently discard halved coconut shells in the ocean, and it turns out that their eight-legged neighbors have been making use of them. Researchers have filmed veined octopi, Amphioctopus marginatus, moving the shell halves by placing their bodies inside the hollowed-out portion, draping their legs over the edges, and bringing the shells along for the ride. When the coconut-carrying octopus feels threatened, it will pull the half shell over its body (or sometimes pulls two halves of a whole coconut over itself), and wait inside their armored home until the threat passes.
I for one welcome our new cephalopod overlords