Echolocation
반향위치결정
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<speciesfyi-glossary slug="echolocation"></speciesfyi-glossary>Definition
A biological sonar system used by bats and dolphins to navigate and locate prey by emitting sound waves and interpreting their echoes.
Detailed Explanation
Bat echolocation calls range from 20 kHz to over 200 kHz — ultrasonic frequencies that bounce off objects with wavelengths small enough to resolve insect wings. Different bat species use different call types adapted to their hunting environment: narrow-band calls for open-air pursuit, broad-band sweeps for cluttered forest foraging. Some moths have evolved ears tuned to bat frequencies and perform evasive maneuvers on detecting a bat's approach.