Some species of octopus see with their skin, study proves

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HARROW: A new study verifies that some species of octopus see with their skin. They use the same eye proteins found in eyes, to detect light.
The new octopus research was published in the Journal of Experimental Biology. It is the first study providing solid evidence that octopuses see by using the same light-sensitive proteins (opsins) located in eye lenses.
Also, the new study about octopus vision revealed that the octopus specieses perform this ability in an unexpected way. They require no input from their central nervous system, according to Discovery.
The research shows how fascinating the eight-legged creatures are. In fact, the marine animals are already famous for being some of Earth’s most mobile and intelligent beings on Earth.
Octopuses are equipped with an odd combo of huge brains and boneless bodies. They can also see by using two extremely complex eyes, according to Tech Times.
Desmond Ramirez of the University of California said that how octopus see by using their skin is less precise than when the cephalopods use their eyes and brains. The former process detects brightness, not contrast.
The octopuses studied to learn how their skin detects light were the Octopus bimaculoides (two-spot octopus). Before they conducted the experiment, the researchers isolated the octopus’ skin and brain, to verify that the brain was not affecting the skin’s response.