Dolphins navigate and hunt underwater using a remarkable ability called echolocation. Unlike us relying on sight, dolphins emit high-pitched clicks that travel through the water. These clicks bounce off objects in their environment, creating echoes that return to the dolphin. By interpreting these echoes, dolphins can form a mental picture of their surroundings. Their melon, the fatty tissue in their forehead, acts like a lens to focus the clicks, and their lower jaw and ears are specialized to