Or perhaps they just listen for the right resonance on a full moon... (13:32) https://www.ted.com/talks/wade_davis_dreams_from_endangered_cultures/transcript?la

Or perhaps they just listen for the right resonance on a full moon... (13:32) https://www.ted.com/talks/wade_davis_dreams_from_endangered_cultures/transcript?language=en https://www.ted.com/talks/wade_davis_dreams_from_endangered_...