We always keep a wary eye on the animal kingdom, especially that enormous portion of it that dwells in the murky depths of the sea. If there is a place on earth from which our doom will come, we feel pretty confident that it'll be the bottom of the ocean. Especially when Octopuses begin to use tools:
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.
This is the first time that researchers have observed tool-use in an invertebrate species, or so the internets tell us, and we're inclined to believe them. This may seem like a trivial development, but bear in mind that it wasn't so long ago on the evolutionary timeline that we ourselves were hitting each other over the heads with rocks and probably using coconut-halves for body armor. Coupled with dolphins evolving opposable thumbs, we feel safe in saying that it is never too early to panic.
via io9
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