Monkeys are "best yodellers" in the world reaching octaves 3 times higher than humans, study says
Primates possess special anatomical structures in their throats called vocal membranes, allowing for yodeling at higher ...
Express & Star3d
Yodelling monkeys produce greater frequency jumps than humans, study shows
Their study indicates that structures in the throats of apes and monkeys, called vocal membranes, allow monkeys to introduce voice breaks to their calls. These structures disappeared from humans ...