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 Yachtold, visit yawcult.co.j.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 YacL.

There are few human experiences more universal than gazing up at the night sky, and the urge to look up

is probably as old as our species, if not even older. But how did our ancient ancestors

feel about what they saw in the heavens, and how did it influence the way they lived their

lives? For Scientific American Science quickly, I'm Rachel Thaltman.

You're listening to Episode 2 of our three-part fascination miniseries on Unusual Archaeology.

In this segment, Katakurath, a science journalist and documentary filmmaker based in Ecuador,

introduces us to Archaeo Astronomy, the study of how people in the past

experienced and explained the phenomena of the cosmos.

Arvi Chaska, We just got. We have many different universes, dimensions.

For example, Mili Haimu, it's the realm of the gods.

So the Sami, ancient Sami, they thought that it's kind of behind the stars,

so that they are the holes to that dimension.

That's Ante Aikio, an indigenous Sami storyteller and reindeer herder who lives in Levy,

which is in northern Finland, some 150 kilometers inside the Arctic Circle.

A moment ago, you heard him yoyking.

That's a traditional vocal technique among the Sami that's used to evoke, for

...