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 CO.J-P. When it comes to a guide for your gut, count on Yacolt.

This is Scientific Americans' 60- Science. I'm Steve Murski.

Got a minute?

People have been leaving messages on bathroom walls for thousands of years.

Just Google ancient Roman bathroom graffiti.

But we're not the only ones to use latrines for information exchange,

as two German researchers have confirmed after hundreds

of hours watching lemurs pee and poop for science. Primatologists Iris Drosher and Peter Capilar

concentrated on seven sets of pair-bonded members of a species called white-footed sportive lemurs at a nature reserve in

southern Madagascar. Their report is in the journal Behavioral Ecology and Sociobiology.

Many animals use the same spots repeatedly to do their business, primates in particular.

For these lemurs, a specific tree becomes the urine and feces focal point, and because chemical

compounds in their waste transmit information, the so-called latrine tree becomes like a bulletin board

to post messages for the rest of the community. Based on their 1,097 hours of observations,

the researchers conclude that urine and glandular secretions left on the tree trunk are the primary message vehicles.

Feces mostly just collects on the ground.

Some urine telegrams are probably signals from a particular lemur to the neighbors that he

or she is around. But male lemurs

...