(R. Steene) The veined octopus (Amphioctopus marginatus) uses coconut shell halves to build a shelter.
First Reported Instance of Invertebrate Acquiring Tools
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DECEMBER 14, 2009
Charles Q. Choi, Live Science

An octopus that uses coconut shells as portable armor is the latest addition to a growing list of animals that use tools.
Read the story: www.msnbc.msn.com/id/34417758