[4] Bathypolypus arcticus has low fecundity meaning that they lay fewer, relatively larger eggs than many other octopuses from which benthic young hatch.

[5] Unusually for octopuses, Bathypolypus arcticus mainly feeds on brittle stars, but this may depend on availability, as captives prefer crustaceans.

[3] A wide range of other food items have been recorded in smaller quantities, including polychaetes, sipunculid worms, foraminiferas and bivalves.

[2][3] Higher water temperatures result in increased growth rates, but shorter life spans in Bathypolypus arcticus.

[3] Bathypolypus arcticus is the host for the dicyemid parasite Dicyemennea canadensis, which lives in the renal appendage of the infected octopus.