SAT, 09.02.2022 06:10 live4dramaoy0yf9
Bats like the one shown in (figure 1) are mainly active at night. They have several senses that they use to find their way about, locate prey, avoid obstacles, and "see" in the dark. Besides the usual sense of vision, bats are able to emit high-frequency sound waves and hear the echo that bounces back when these sound waves hit an object. This sonar-like system is called echolocation. Typical frequencies emitted by bats are between 20 and 200 khz. Note that the human ear is sensitive only to frequencies as high as 20 khz.
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Bats like the one shown in (figure 1) are mainly active at night. They have several senses that they...
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