Nautiloidea,Nautilidae

Features：It is the only existing cephalopod with a complete shell and is also one of the famous marine molluscs.

Nautilus refers to a family classification under the order Nautilus in the class Cephalopoda. The common features of nautilus are its large number of tentacles, long lifespan, and the use of pinhole imaging eyes. It is the only existing cephalopod with a complete shell. , is also one of the famous marine molluscs. At present, the population of nautilus is relatively rare. Although it is not extinct, its living environment requires special water pressure, making it difficult to breed artificially...

Pseudocarcinus gigas,King crab, heavy false back crab, Australian king crab, Australian giant crab

Features：It is the heaviest crab in existence, with a huge and imposing claw.

The giant shore crab is also commonly known as the emperor crab, and should not be confused with the king crab.The giant shore crab is a predator of many organisms, especially bivalves, polychaetes, and small crustaceans. They are mainly nocturnal, but they are active during the day depending on the...

Achatina fulica,Brown cloud agate snail, Chinese white jade snail

Features：It is named because its head, neck, abdomen, feet and body muscles are white like jade.

The scientific name of the white jade snail is Achatina fulica, also known as the brown cloud agate snail, which is a subspecies of the African giant snail.White Jade Snail lives on field crops, forest trees and humid environments. It is sensitive to light stimulation. Its visibility in weak light i...

Grimpoteuthis bathynectes，Dumbo Octopus，Gulf of Mexico ash octopus, semi-deep sea ash octopus

Features：The fins look like elephant ears

Dumbo Octopus (scientific name: Grimpoteuthis bathynectes), also known as Dumbo Octopus in foreign languages, is a peculiar "octopus".In January 2014, marine biologists discovered this 6-foot-long octopus-a strange "octopus" more than a mile deep in the Mid-Atlantic Ridge. This o...

Giant North Pacific Octopus

Features：They have a short lifespan, but are very fertile, and can lay up to 100,000 eggs.

As a representative of invertebrates, the octopus has a soft body and a hard mouth. The Pacific giant octopus is the largest one among them. The largest North Pacific giant octopus discovered so far weighs 554 kilograms and has a wingspan of 9.8 meters. It is considered the largest octopus in the wo...