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.com.j.

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

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

This is Scientific Americans' 60-second science.

I'm Jason Goldman.

Lassie!

Starring John Provost as Timmy and of course Lassie.

It's a classic television trope. Timmy has fallen down a well.

Lassie can't save him herself, so she runs to find help.

Actually, Timmy never did fall down a well in the entire run of the TV show. But the idea that a dog could seek help from a human does have a solid basis in science. In what's known as the unsolvable task experiment, a dog first

learns how to open a puzzle box with a tasty treat inside. The puzzle is then secretly switched

for another that's impossible to solve. After becoming frustrated, dogs shift their attention

away from the puzzle and onto a nearby

human, then back to the puzzle.

The dog attempts to shift the human's attention to the puzzle as a request for help.

Human infants do the same thing.

Such efforts are called referential communication.

So if dogs behave this way, you might expect the same from their close relatives,

wolves. But when researchers tested wolves raised by humans, the animals just kept trying to solve the puzzle, never seeking help.

...