Bat Chat Did you know that in one bat-cave, you could find _____ many as 20 million bats? In spite _____ their extraordinary numbers, bats miraculously never fly _____ each other! How is this possible? Bats emit ultrasonic sounds _____ bounce back to themselves,allowing them to judge the size and distance of objects. ___short, they use their ears to "see"! Bats can achieve this with ____ incredible accuracy that they can even detect a tiny ant on the ground! Not ____ that, but they also use their voices to sing likebirds! Yet, unlike birds, bats sing in mostly ultrasonic frequencies that are usually ____ high for humans to hear. In fact, bats have some of the most intricate communication systems in the animal kingdom. They actually use their songs to talk to each other and have ____ found to have distinctive vocal patterns, just _____ humans. Indeed, scientists _____ so amazed by bats, they believe that by studying bat-language, they could provide better treatment _____ human speech disorders.
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