The Kraken is a legendary cephalopod living in the northen seas. It has been said that like a sea serpent, it too has brought down tremendous ships. The Kraken is a major element of Norse mythology by the Vikings. Some hypothesize that it is a giant octopus while other believe that it is an already discovered species of giant squid, even though the giant squid has no vessels of attacking ships. As for giant octopus, no evidence has been recorded for an octopus that grows over twelve feet and is unlikely that an octopus is the culprit.