Argonaut (Argonauta argo ... arm and a life to the cause of reproduction. This species of octopus is also known as the paper nautilus (the shell it builds to hold its eggs is made of paper ...

Their paper-thin ‘shells’ make them look a lot like the cephalopod the chambered nautilus, which is actually only distantly related. Despite all the confusion, today we’re confident they’re octopuses ...

A juvenile argonaut – part of the octopus family – rides atop ... Argonauts are commonly known as paper nautiluses because of the paper-thin egg case that females secrete, which looks like a nautilus ...