Directions for making a simple model of vocal chords. All you need is a plastic cup, a rubber band, and a straw.

Players will test their knowledge of the vocal tract by taking this 17 question quiz.

Explanations, with audio examples, of the way your vocal tract changes when different vowel sounds are made.

A post from 'Vocalist' written by Lloyd Hanson, a professor of voice, explaining the diaphragm muscle system.

Baboons have incredible vocal chords, and they can make more than 30 distinct noises, from short grunting sounds to full-blown screaming. Learn more about Baboons in this well-constructed overview by Wonderville.