Asian elephants shown to 'buzz' their lips to squeak
Published Date: 6/23/2021
Source: phys.org
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.