Here's a viral moment from last month's Miss World Chile competition. (SOUNDBITE OF ARCHIVED RECORDING) IGNACIA FERNANDEZ: (Singing) [inaudible] . ESTRIN: Wow. Ignacia Fernandez surprised the audience ...
Bats are known for their high-frequency calls, which they use to echolocate and catch prey, but they also let out much lower frequency calls for bat-to-bat communication. The structure in a bat’s ...
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