15 Bizarre Ways Marine Life Uses Sound, Light, and Electricity to Communicate

12. Cuttlefish Skin Displays

Cuttlefish are masters of dynamic skin displays, rapidly shifting colors and patterns to communicate aggression, submission, readiness to mate, or warnings. They achieve this through direct brain control over pigment cells, creating high-definition ‘broadcasts’ right on their skin. Rival cuttlefish often duel using intricate pattern changes. (en.wikipedia.org)