These 9 animals have evolved incredible ways to communicate without making a sound using body movements vibrations scent signals bioluminescence and even color changes to warn attract or ...

Echolocation is the process of using sound to sense what is around ... Dolphins are probably the second best-known animals for echolocation. Their high-pitched chittering calls serve another purpose ...

While humans are unable to hear ultrasonic sounds, many animals rely on them for communication, navigation, and even hunting. For a long time, researchers believed animals used the same biomechanical ...