All octopus including the giant octopus has a soft body and eight arms. Each arm has two rows of suction cups. If one arm is lost, the octopus can regrow another arm. It has blue blood. An octopus has an eye on each side of its head and has very good eyesight. An octopus cannot hear.
The diet of the octopus consists of crabs, scallops, snails, fish, turtles, crustaceans(like shrimp) and other octopuses. They stalk the prey, give it a death hug and bite it to kill the prey. They paralyse the prey with a nerve poison and soften the flesh, after which they suck out the flesh. Giant octopuses can hunt anytime of the day. The Australian Blue-ringed octopus is the only variety which has a poison strong enough to kill a person.
