Two-Spot Octopus

Octopus bimaculoides

The two-spotted octopus is generally always hiding or spending time searching for food on the seafloor (1).  With blue circular eyespots on each side of the head, the average 3 ft length octopus has the ability to trick predators and prey into believing that the marks are the actual eyes on its own body (1).  The main diet of this species includes limpets, snails, black abalone, and small fish (1). In regards to the habitat and geographic distribution of the two-spotted octopus, the habitats enompasses reefs and pilings with a range of the species found from central California to northern Baja California (1).  One interesting adaptation of the octopus includes that it can navigate through conditional discrimination (2). Moreover, the species can for instance select the correct escape route if given two possible pathways with only one being an exit (2).

(1) Two-spot octopus. (n.d.). Retrieved from

(2) Hvorecny, L.M., Grudowski, J.L., Blakeslee, C.J., Simmons, T.L., Roy, P.R., Brooks, J.A., Hanner, R.M., Beigel, M.E., Karson, M.A., Nicholas, R.H., Holm, J.B., Boal, J.G. (2007) Octopus (Octopus bimaculoides) and cuttlefishes (Sepia pharaonis, S. officinalis) can conditionally discriminate. Springer, 10(4), 449-459. DOI: 10.1007/s10071-007-0085-4

(Photograph) Gerald and Buff Corsi © California Academy of Sciences


  • Reefs/Pilings