Unseen Marvels: 18 Animal Senses Outperforming Human Perception in Astonishing Ways
The Dolphin's Sonar

Like bats, dolphins use echolocation to navigate and hunt. They emit a series of clicks, then listen for the echoes to determine the location and nature of objects in their environment. Dolphins' sonar is so precise that they can distinguish between different types of fish and detect a fish's size and distance.