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.

.jp. That's Y-A-K-U-L-T.C-O.jp. When it comes to a guide for your gut, count on Yacult.

This is Scientific American 60-second science. I'm Emily Schweng. What comes to mind when you think of Alaska?

Probably snow and ice and extreme cold. But what about tomatoes? In fact, agriculture is booming in the 49th state.

Because in the last seven years, nearly 700 giant greenhouses have popped up there

thanks to a program funded by the U.S. Department of Agriculture's Natural Resource Conservation Service.

One greenhouse just outside Homer, an area better known for its halibut fishing, includes a tunnel

packed with plants that produce fruits and

vegetables that you'd expect to find on a dinner table closer to Mexico.

Look at all those tomatoes back there.

This is like the salsa tunnel.

It is.

It is.

Come walk inside from it.

Okay.

Farmer Donorey Faulkner.

She guides me through rows of wall-to-wall and floor-to-ceiling greenery.

Yeah, this is the nightshades. So all things nightshade, eggplants and peppers and tomatoes and tomotelios.

And that's her husband, Don McNamara. With help from the sun, the inside of the tunnel becomes a region with what's called a good hardiness zone,

...