Cuttlefish (cuttlefish) belong to the order Cephalopoda, they belong to the order Octopus, and octopus belongs to the order Octopus. It can be seen that cuttlefish is closely related to squid, but it is a distant relative to octopus. The difference between octopus and octopus mainly lies in the number of tentacles! So octopus has two tentacles less than squid and squid!
They share a common ancestor, Nautilus, which is called "Tripod", so it looks like a natural thing.
First, the number of tentacles, as mentioned earlier, cuttlefish and squid have ten tentacles, while octopus has eight tentacles! Octopus can be quickly distinguished from the number of tentacles!
Second, bones, octopus is soft, squid has cartilage, cuttlefish has hard bones!
Third, the appearance and shape of octopus balls are believed to have been eaten by many people. Octopus is really the most meatball-like of the three. Octopus is saccate. Squid body is long and narrow, just like a "water pipe"; Cuttlefish is flat and wide, like a "flying carpet"!
Fourth, life habits, octopus is Nocturnal Animals, sensitive to light, like the dark environment, generally crawling on the seabed, moving slowly, while squid and cuttlefish are marching in the sea, moving quickly!
Fifth, the way of eating, cuttlefish can be eaten raw or cooked, which makes it taste better raw, while squid and cuttlefish need cooked food because they contain polypeptide components. Immature may cause stomach upset for diners!