Mantis shrimp have the world’s best eyes – but why?
Mantis shrimp have compound eyes that are made up of tens of thousands of ommatidia. These remarkable creatures have up to 16 photoreceptors and they can see UV, visible and polarised light. Amazingly, they are the only animals that can detect “circularly polarised light”, which is the circular rotating wave component of light. Mantis shrimp can also perceive depth with only one eye and each of their eyes can move independently. The vision capabilities of a mantis shrimp are utterly impossible for humans to imagine, but the things they can se must be incredible. (read more)