Although they are color-blind, cuttlefish camouflage their bodies by using the millions of color cells in their body to create complex color patterns on their skin to elude predators. A cuttlefish has the ability to rapidly change their color to match their surroundings.
During the day, cuttlefish flash brilliant color patterns to attract females and deter rivals. When dusk comes, they retreat to the seafloor where they are safer, using their ability to change colors to hide from predators. Even in total darkness, cuttlefish can access their surroundings and mimic the texture, color, and contrast of the world around them. When cuttlefish feel threatened, they have ink like an octopus that they squirt at their predators.