Asian elephants shown to 'buzz' their lips to squeak

1 month ago 18
Everybody knows that elephants trumpet. Over the past decades research at the University of Vienna has mainly studied the elephants' low-frequency rumble. Its fundamental frequency reaches into the infrasonic range below the human hearing threshold. This call is produced by the elephant´s massive vocal folds. Much less was known about how elephants produce their higher pitched sounds, the trumpets and squeaks.
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