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.

Yachtold 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-Lt.c-O.jp. When it comes to a guide for your gut, count on Yacolt.

The night skies have fascinated humans for as long as we've been around.

Celestial bodies have become actors in our myths and folklore.

And from the stars and heavens, we draw inspiration and even religion.

But the night skies have also taught us how to keep time and coordinate our days and seasons.

We have long used the night skies to live our lives more predictably and make our way through the world more purposefully.

But we're not the only ones.

I'm Jacob Job and you're listening to Scientific Americans Science Quickly.

Today, part four of our five-part series on the Nighttime Bird Surveillance Network,

an informal but important global audio dragnet that tracks some of the billions of migratory birds

as they fly through the night.

If you're lucky, and it's a clear night and the moon is illuminated,

there are so many birds migrating on average on these nights that

if you use a telescope and look at the moon for a few minutes,

you're likely to see a bird high overhead flying and silhouetted it in front of the face of the moon.

Seeing birds fly in front of the moon or hearing the calls from above,

I found really thrilling because it felt like I was tapping into this vast,

mysterious pulse of the planet phenomenon that was just so much bigger than me.

...