Octopuses and their tentacled brethren are fascinating, and even a little scary. In addition to their uniquely alien intelligence, cephalopods are known to change color based on their surroundings. That ability is thought to rely mainly on eyesight, as the creatures can visually detect basic changes in the environment and camouflage themselves in order to hide from predators. However, new research shows that pigment proteins found in eyes are also present in cephalopod skin, allowing them to detect different kinds of light without input from the brain.
The research, published in the Journal of Experimental Biology, investigates how cell structures known as chromatophores interact with light, and is an extension of research on octopuses...
Octopuses and other cephalopods can 'see' with their skin
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