The Giant Octopus is a daikaiju-sized cephalopod from the Pacific Ocean which attacked San Francisco in 1955. Curiously for an octopus, it possesses only six arms, rather than the usual eight.
This is a huge, six-armed, free-swimming, jet-propelled mollusk, and is capable of achieving great speed on the open oceans. Its natural habitat is the Mindanao Deep in the Philippine Sea, but it was driven away by nuclear bomb testings in the area, which also resulted in its body becoming dangerously radioactive. After sinking a ship, the giant octopus apparently develops a taste for human flesh, as it swims towards the North American coast, grabs a car with one of its tentacles and apparently feeds on the people inside. According to Dr. Lesley Joyce, a member of this species was also observed off the coast of Denmark and Holland in the 13th century.
- It Came from Beneath the Sea (1955)