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.j.p.

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

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

This is Scientific Americans' 60 Second Science.

I'm Karen Hopkins.

Bats rely on echolocation to navigate the night's skies

and to chase down and capture even erratically moving prey.

But even more impressive than their aerial acrobatics are the mental gymnastics

bats must be performing to translate the time it takes for their echoed calls to return into a

distance to their target. Now those pings would not normally be audible to our human ears, but we slowed them down

so you can hear how a bat closes in on an object.

Now, a new study shows that to get a leg up, or a wing up, on the necessary navigational

calculations, bats have an innate sense of the speed of sound.

The work appears in the proceedings of the National Academy of Sciences.

It has always been assumed that bats use the speed of sound in order to assess distance.

So basically their brains measure time, and then if they know the speed of sound, they can assess the distance to a target using it.

EOSY Yovil of Tel Aviv University.

But this assumes that they know the speed of sound, and this was never actually tested.

That's where the helium comes in.

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