You wouldn't be alone if you thought the octopus and squid were the same animals. ... They are cousins—both part of the group cephalopoda—a group of marine mollusks that include squid, octopus, nautilus, and snails. The largest cephalopod is the giant squid and the smallest being the pygmy squid.

Can squids and octopus mate?

Cephalopods in general

Among cephalopods that mate in groups (including many squids, cuttlefish, and at least one type of octopus), large males guard individual females and chase away competing males. ... In most octopus species, females can even mate with two males at the same time.

Is calamari a squid or octopus?

Octopus is commonly confused with calamari, though both are surprisingly different in taste (when served raw) and cooking methods. Many people think calamari dishes are made from octopus, when in fact calamari is actually made from a type of squid.