Seeing without eyes: octopus's skin possesses the same cellular mechanism for detecting light as its eyes do

ScienceDaily
May 20, 2015, 7:39 pm2.1k ptsInsanely GreatTop
The skin of the California two-spot octopus can sense light even without input from the central nervous system. The animal does so by using the same family of light-sensitive proteins called opsins found in its eyes -- a process not previously described for cephalopods.

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