Gibbons and Opera Singers Use the Same Voice Tools -- National Geographic

Gibbons and Opera Singers Use the Same Voice Tools -- National Geographic: It’s an old party trick—sucking helium from balloons so you can sing like a Wizard of Oz munchkin. When gibbons inhale this non-toxic gas, researchers can detect much more sophisticated impersonations. It turns out that gibbon vocalization techniques mirror those of highly trained soprano opera singers.