Octopuses can ‘see’ with their skin – completely bypassing their eyes and brains
The same light-sensitive pigment found in their eyes exists in their skin
http://www.mirror.co.uk/news/technology-science/science/octopuses-can-see-skin—5733629
This is not unexpected to me, I have seen videos of octopi moving onto something and then camouflaging themselves while apparently keeping their visual focus on the camera man. I have also seen situations where the octopus is slowly moving across a portion of the sea floor and shifting their colors as they move. Of course, they might be shifting their focus briefly and have the intellect to memorize the ground they are about to cover, but it makes more sense to me that ‘evolution’ would ‘delegate’ this task to the skin and not bother using the brain/eyes.
