it is one of the least common colors seen in the natural world. When blue does show up in nature, however, it always does so in a striking and beautiful way. Many snakes around the world display ...

Blue coral snake (Calliophis bivirgatus ... where the bright color is a warning signal to predators. The Arizona coral snake's color pattern has acted as a defense mechanism and as a visual ...

color in the ultraviolet range. Examining snakes, the researchers categorized how the animals used patterns of UV color and tested for factors that promote the evolution of UV color in snakes.