Fruit Bat (Rousettus)
Unlike most bats that vocalize through their larynx, Rousettus fruit bats click their tongues. These audible clicks fall partially within human hearing range. Fruit bats primarily rely on vision and smell to find food. They reserve echolocation mainly for navigating through pitch-black caves to reach roosting sites. They represent the only fruit bats known to use echolocation. Their tongue-clicking technique proves less efficient than laryngeal calls but works well enough for short-range navigation through familiar cave systems.