John Colapinto

I mean, it's so hard to wrap your mind around the randomness of it all, but that's the way it was.

So you've got a fish.

That would literally permit oxygen to pass through it into the bloodstream of the fish and keep it alive.

You got it.

You have got it.

Now that's critically important.

And again, the thing that just made me go, oh, I got to write this book was that slit, that valve that became our vocal cords and our vocal cords remain a valve.

I mean, I never knew this because we call them vocal cords.

We think of them as being like strings, like on a violin or piano strings that are struck and vibrate to create sound.

Right.

That's not how we make our voices.

That's not how we produce sound with our voices.

Yeah.

It's hard to do...

I'm not doing it.

Yes, like a horse.

Annie's doing it so well there.

All of a sudden, it's being refined.

which now enable, through a complex like twisting and moving back and forth of those cartilages, you can stretch the vocal folds to create a higher-pitched sound.

You can loosen and slacken it for lower sounds.