When yodelling, a human might be able to jump an octave, which doubles the frequency. Monkeys can manage three and half octaves, according to a new study.

Monkeys, scientists found, had a secret yodelling weapon; the primates possess special anatomical structures in their throats called vocal membranes.

Yodellers of the world, you never stood a chance: Monkeys will always be better at yodelling than humans because they have a "cheap trick" hidden in their voice box, scientists revealed Thursday.

Monkeys, scientists found, had a secret yodelling weapon; the primates possess special anatomical structures in their throats called vocal membranes.

Spider monkeys can hit the widest range of octaves while 'yodelling', easily beating humans Ezequiel BECERRA Howler monkeys -- it's in the name -- can out-yodel humans without breaking a sweat ...

Monkeys, scientists found, had a secret yodelling weapon; the primates possess special anatomical structures in their throats called vocal membranes. These membranes disappeared from humans ...