Due to the fact that its body is so soft and vulnerable, the octopus has developed some fascinating defense mechanisms. While their ability to squirt ink and make a quick getaway is possibly the most famous of these defenses, they're also masters of disguise. They are so good at disguising themselves, it would make a chameleon jealous. Octopuses have countless cellular color sacs, called chromatophores. These sacs are filled with various pigments. Squeezing these sacs causes the color to be pushed up to the surface, creating an array of bright colors and a variety of patterns. Apart from this, they also have other cells that enable them to alter their skin texture, mirror ambient light, and more. Watch as this octopus shows off a variety of these skills.