How do dolphins use echolocation to hunt?

Dolphins use echolocation by emitting high-frequency clicks through their blowhole or nasal passages. These sound waves travel through water and bounce off objects, including prey, creating echoes that dolphins interpret to determine size, shape, distance, and movement. Their specialised organ called the melon focuses the sound, while their jawbone transmits returning echoes to their inner ear. Echolocation is so precise that dolphins can detect a small fish hidden in sand, making it a vital tool for hunting and navigation.