Re: OT: "Tracheal" consonants: a curiosity?

Benct Philip Jonsson wrote:

>Are you sure that these are not epiglottals?  Just because
>60% of the human race are unable to ptonounce such sounds
>doesn't mean that you aren't among the remaining 40%.
>
Only 40%? that's surprising. I mean, everyone once got a cold... That's the
sound you make when you have something in the throat, isn't it?

But what languages use these sounds? In my ears and mouth, this is not a
sound that sounds really beautiful or that is pleasant to produce...

So two questions: What languages or languages families use this sound? And
do the people who use this sound in everyday speach have a different form of
epiglottis or throat?

- Max