Superhero Vision Their compound eyes are made up of thousands of tiny parts that detect light. These light-detecting cells are called ‘photoreceptors’ and the mantis shrimp has an amazing 12 – 16 of them. Humans, in contrast have 3, red, green and blue!They have three pupils lined up in a row and each one scans the environment to see. It was thought that due to the extra receptors Mantis Shrimp could see more colors than humans, but experiments showed this wasn’t the case. In fact, despite the amount of receptors they have, they appear to see a similar amount of colors to humans.So if these receptors aren’t for seeing extra colors, what are they for? Why do they have such complex eyes?The short answer is, we still don’t know for sure. However, researchers have been studying Mantis Shrimps eyesight and now believe that the extra receptors may be a way of allowing it to process images it sees very quickly without much input from its brain. This could make sense given how fast the Mantis Shrimp hits.Another reason they might have such complex eyesight is potentially to communicate. Seeing polarized light could be a way that Mantis Shrimp signal to each other, by interpreting ultraviolet patterns reflecting off each other’s bodies.