Add in the octopus’s small size (generally around ... that have slender protrusions trailing from their suckers called cirri. The role of cirri is not known, but it’s thought to have something ...

These are flanked by hair-like projections called cirri. This places them in the deep-sea cirrate octopus group, which is one of the two main divisions of octopuses. The other division is the ...

It is likely they use their cirri to sweep food into their mouth. The deepest living octopus has certainly captured hearts. "I'm biased, but I think they are really cool," says Dr. Bush.