Who studied how bats use ultrasound to detect their prey? Doppler Boyle Mersenne Spallanzani

The study of how bats use ultrasound to detect their prey is primarily attributed to Lazzaro Spallanzani. In the 18th century, Spallanzani conducted experiments demonstrating that bats could navigate and locate prey in the dark through echolocation—a phenomenon where they emit sound waves that bounce off objects, allowing them to perceive their surroundings. Although other scientists like Doppler and Mersenne contributed to sound studies, Spallanzani's work specifically laid the foundation for understanding echolocation in bats. His findings were groundbreaking in understanding animal navigation and sensory perception in the absence of light.