Cephalopods are a group of animals that includes squid, octopuses, and cuttlefish. They change their skin color to blend in with their surroundings. This ability has have baffled scientists for years. They thought cephalopods could only see in black and white. However, a recent study suggests that cephalopods can detect color. The study used a computer model to show how cephalopods could change their eyes’ focal point, similar to the way a digital camera can change its focus to make a clearer picture. Changing their eyes’ focus would allow cephalopods to sense different wavelengths of light. This would help them detect and match the colors around them.