From Grunting To Gabbing: Why Humans Can Talk

Most of us do it every day without even thinking about it, yet talking is a uniquely human ability. Not only do humans have evolved brains that process and produce language and syntax, but we also can make a range of sounds and tones that we use to form hundreds of thousands of words.

To make these sounds — and talk — humans use the same basic apparatus that chimps have: lungs, throat, voice box, tongue and lips. But we're the ones singing opera and talking on the phone. That is because over thousands of years, humans have evolved a longer throat and smaller mouth better suited for shaping sound.

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