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[Previous entry: "New Yorker cartoon captions replaced with the same phrase."] [Main Index] [Next entry: "Amazing wire figures."] 03/15/2006 Entry: ""Singing frog" also hears ultrasound" "Singing frog" also hears ultrasound. A few years ago this rare frog was discovered to sing, somewhat like a bird. Recently it was found that it also can hear ultrasound. The only non-mammal to do so.
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