Giant Octopus
texchanchan writes "Yahoo reports that the first adult specimen, dead unfortunately, of a very large octopus species has been brought in by fishermen. '[A] very big octopus, the size of a fully mature male giant squid,' says a marine biologist. It is described as 'extremely deep... extremely large...'"
The largest octopus reported in scientific literature was 32 feet from arm tip to arm tip and weighed 300 lbs. It was an unusual looking octopus. The biggest one that I've ever seen was found in the waters around Vancouver Island, and was 22.5 ft. from arm tip to arm tip and weighed 156 lbs. (Jim Cosgrove, RBCM)
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taken from http://7thfloormedia.com/projects/safari/newslett