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.

J-P. 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.

This is Scientific American's 60-second science. I'm Christopher in Talata. Got a minute?

The Southern Ocean, which surrounds the Antarctica, is the cloudiest place on Earth.

It's relatively free of humans.

And the dust, pollen, and spores that float off more temperate lands don't make it that far south,

making the Southern Ocean an ideal lab to study the natural formation of clouds.

You know, if you want to hear someone talking, it's easier to hear them in a quiet room

than in a room where a lot of other people are talking as well.

Susanna Burroughs is an atmospheric scientist at Pacific Northwest National Lab in Washington.

The isolated signal Burroughs and her colleagues wanted to hear

was how particles from floating phytoplankton

influence cloud droplet formation.

They use computer models to simulate the stuff

that seeds clouds over the southern ocean,

particles like sea salts, organic bits from phytoplankton

kicked up by the sea spray, and sulfates

from the gases the critters emit. They compared those particulate simulations to actual satellite

measurements of clouds, and they found that during the southern summer, when plankton bloom,

...