Bats use a process called echolocation to navigate and find prey in the dark. They emit high-frequency sound waves, which are beyond the range of human hearing (ultrasonic waves). These waves reflect off objects in their path, and the bat detects the returning echoes, interpreting them to build a 'sound map' of their surroundings, thus detecting obstacles and prey.
Bats detect obstacles in their path by receiving the reflected
Asked in UPSC NDA 2 2017 · Topic: Human Anatomy and Physiology (Nervous System and Sensory Organs)
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