9. Mantis Shrimp Color Language
Mantis shrimp possess an extraordinary visual system, enabling them to perceive a vast spectrum of colors, including ultraviolet and polarized light. (nationalgeographic.com) They communicate aggression or readiness to mate through dynamic color changes on their bodies, particularly on their raptorial appendages. (now.tufts.edu) These chromatic displays, often invisible to most animals, allow for subtle signaling without drawing predators’ attention. (australiangeographic.com.au)