Cholesteric refers to a type of liquid crystal phase that exhibits unique optical properties. These materials are characterized by their helical structure, which can reflect specific wavelengths of light, creating vibrant colors. Cholesteric liquid crystals are commonly used in displays and sensors due to their ability to change color based on temperature or electric fields. In addition to their applications in technology, cholesteric liquid crystals are also found in nature. For example, the wings of certain butterflies, such as the Morpho butterfly, display brilliant colors due to cholesteric structures. This natural phenomenon highlights the beauty and functionality of these materials in both science and art.