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Octopus, also called octopus, has a small body and eight long tentacles, so it is also called octopus.
Octopus has eight sensitive touch wrists, and there are about 300 suction cups on each touch wrist, and the pulling force of each suction cup is 100g. No matter who is entangled in its wrist, it is difficult to get away. Octopus's wrist-touching, like human hands, has high sensitivity and is used to detect external movements.
Extended data
There are about 65438+ ten thousand species of mollusks. The system is very different, but it has the same characteristics: the body is soft and not segmented, and it is generally divided into feet (some heads degenerate or disappear; Foot muscle) and viscera-sleeve (composed of dorsal visceral mass, sleeve and sleeve cavity).
Molluscs include squid, octopus, nautilus and extinct ammonites and arrowstones. It has long tentacles near its mouth to catch prey, and it moves by spraying water with a siphon. Mollusks are the second door of the animal kingdom.
The little octopus is ugly, but good at kung fu. Of the 200 known octopus species, most are very small, and only in the North Pacific do large species live. Their tentacles are about 5 ~ 10 m and their weight can reach 45 kg.
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