Octopus and squid are very similar in shape, except that squid has 5 pairs of feet on its head, while octopus has 4 pairs, commonly known as 8-claw fish.

At present, the largest octopus known is the common Pacific octopus, and divers are keen to fight these animals. 1973, 18 On February 8, 2008, divers took root in the Xiahood Canal in Washington 18.3 meters deep and wrestled with one hand to catch 1 octopus. After deployment, its wrist radius is 7.8 meters and its weight is 53.6 kilograms. Another report said: "1896, 1 1 In June, a pile of marine animal remains weighing about 6-7 tons was found on the coast of St. Augustine, Florida, USA. It was not until 1970 that the wreckage was determined to be the remains of a large octopus after testing by the National Museum of America in Washington. It is estimated that the wrist can open up to 6 1 meter. " People may sigh that octopus is not only big, but also takes a long time to get this test report.