Study
Eye-independent, light-activated chromatophore expansion (LACE) and expression of phototransduction genes in the skin of Octopus bimaculoides
Ramirez, M. Desmond; Oakley, Todd H.
Journal of Experimental Biology, 2015
Pieces of octopus skin, disconnected from eyes and brain, were exposed to light of different wavelengths while chromatophore expansion was recorded. The skin was also tested for the light-sensitive protein rhodopsin.
- Studied in
- Octopus bimaculoides
- Sample size
- isolated skin preparations
Isolated skin expanded its chromatophores in response to light, most strongly to blue, and expressed rhodopsin — meaning the skin itself detects light.
What it means
The authors' reading, and ours. Where they differ, that difference is the point.
How the authors put it
Octopus skin contains a light-sensing system that operates independently of the eyes.
How NatureHQ reads it
Often summarised as "octopuses see with their skin", which overstates it in an interesting direction. The skin detects light and responds locally; there is no evidence it forms an image or that the animal experiences anything through it. Detecting brightness and wavelength across the body surface is nonetheless a plausible contributor to how a colour-blind animal matches a coloured background.
- Isolated tissue, not intact behaving animals.
- Light detection is not spatial vision.
- The link to camouflage performance in a living octopus is inferred.
What this study is used for on NatureHQ
One study can inform several subjects. Here is everywhere this one is cited.
Published by: The Company of BiologistsPublished by The Company of Biologists.
This reference was resolved automatically against Crossref and OpenAlex on 2026-08-11.
NatureHQ summarises research in its own words and does not reproduce published text. Reviewed 2026-08-09.