Humming Giraffes

“Someone discovered the giraffe hums at a harmonic rate of 92 Hertz, voice thrumming the tower of spine and trachea once thought to be silent….” ”Ode to This Small Joy”- Maria Calabretta Cancio-Bello After reviewing almost 1000 hours of sound recordings in three European zoos, Angela Stöger at the University of Vienna, Austria…   picked up a weird …

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