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 Yachtol, visit yawcult.co.

.jp. That's Y-A-K-U-L-T.C-O.J-P. When it comes to a guide for your gut, count on Yacult.

This is Scientific Americans' 60 Second Science. I'm Jason Goldman.

Wild animals are equipped with a variety of techniques to avoid becoming lunch for a bigger, toothier animal.

The most well-known methods include the classic fight and flight, as well as freeze.

A team of researchers wondered how proximity to people might impact those survival strategies.

We often see that animals are more tolerant around us in urban areas, but we don't really

know why.

UCLA evolutionary biologist Dan Blumsteen.

Is it a filtering process where only the tolerant animals are there?

Is it just individual plasticity, meaning individuals habituate or change their fear of us?

And that leads to tolerance, you know, or can there be an evolutionary dynamic occurring?

To find out, Blumstein and his colleagues combined information from 173 studies

of more than 100 species, including mammals, birds, reptiles, fish, and even mollusks.

Turns out that regardless of evolutionary lineage, the animals react in a similar way to life

among humans. They lose their anti-preditor

traits. That pattern is especially pronounced for herbivores and for social species. This behavioral

change is perhaps unsurprising when it's intentional, the result of domestication and a

controlled breeding paradigm. But it turns out that

...