Nautilus

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...