Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

To learn more about Yachtolt, visit yawcult.co.com.j.

That's y-A-K-U-L-T dot-C-O-J-P.

When it comes to a guide for your gut, count on Yacolt.

You're listening to Science Quickly. I'm Jeff Delviso.

Now, we're not sure about all of you, but for us here on the show, some days we just want to explore.

The unknown still exists all around us, and we have the super sweet day job of talking to folks who plumbed the depths of those mysterious places.

Today I'm joined by two explorers, and they literally seek out the deepest unknowns there are

on this earth. Karen Lloyd is a microbiologist at the University of Tennessee, though she's soon to be at the

University of Southern California, and Peter Barry is a geochemist and volcanologist at the Woods Hole

Oceanographic Institution. Hi, Karen. Hi, Peter. Hey. Hey, Jeff. So thank you for joining us today.

So maybe let's start off with this.

Tell us about unknown places that you love the most and you seek out.

Peter, why don't you go first?

Sure, yeah.

So I am a volcanologist and geochemist, and I love to work in volcanic systems and hot springs all around the world. And what we try to do is visit different places where there's natural volcanic emissions. So there's there's gas, there's fluid coming to the surface. And what I do is I can collect those gases and those fluids and I can bring them back to my laboratory here in Massachusetts, and we can measure the

chemistry of those systems. I specialize in measuring stable isotopes, things like carbon and helium

and other stable isotopes, and we can basically fingerprint these different volcanic systems to

understand where the fluids and the gases and the material are coming from within Earth's

deep interior. And I love traveling to subduction zones all over the world. And it's

...