The world's largest octopus

The largest octopus in the world is the Pacific giant octopus.

Pacific giant octopus has a long life. It is the world's largest octopus record holder. It is a Pacific giant octopus with a circumference of 9. 1 m and a weight of 272kg. 1896 At the end of the year, two boys were playing at San Augustins Beach and found a huge white creature. It is 2 1 foot long, 7 feet wide and weighs 7 tons. And the body is very elastic. Local doctors, zoologists, photographers and journalists have all identified this creature: it has a head, eyes, mouth, tentacles and a tail.

1957, a giant octopus ran aground on the beach in British Columbia, Canada. It is 9.6 meters in diameter and weighs 272 kilograms. Jim cosgrove, who has studied cephalopods for 25 years, thinks that only the sea off the west coast of Canada can have such a huge octopus. The mild climate and abundant food in the water there ensure that octopus can grow into a huge body.

Morphological characteristics:

Octopus is the general name of 252 species of marine mollusks belonging to 26 genera of Octopodidae. As the largest family of Cephalopoda, it can be divided into deep-sea Polypoda, Fine Foot, Fine Foot and Octapoda. The body is ovoid or ovoid, muscular, with narrow hair cavity opening and generally no water holes on the body surface. Wrist sucker 1 or 2 rows.

Male has a stem on the left or right third wrist, a spermatic groove on the ventral margin of the wrist and a spoon-shaped tongue at the end; The stem wrist can't be broken by itself. The external lock of the funnel degenerates. There are 1 pairs of degenerated needle-like inner shells or no inner shells. If there is a toothed tongue, the lateral teeth of the toothed tongue are generally single-pointed. The stomach and cecum are located at the back of digestive gland. A giant octopus called octopus dofleini lives in the coastal waters of the North Pacific from California to Japan. The average diameter of male octopus is 3m, and its weight is 25-30kg, while that of female octopus is less than 2.5m, and its weight is15kg.

The above contents refer to Baidu Encyclopedia-Giant Octopus.