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.

.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 American's 60 Second Science.

I'm Shayla Farsan.

Climate change is affecting animals in a lot of different ways, but scientists have noticed a common trend across a variety of species.

They're getting smaller, as in physically smaller in size.

But why? And what could this mean?

Scientists have observed this phenomenon in very different animal species, from wild sheep to wood rats.

But it's especially well documented in North American songbirds.

In 2019, researchers at the University of Michigan

published a data set of more than 70,000 birds that died after hitting windows in Chicago.

The data showed that the body sizes for dozens of species had actually shrunk over the past 40 years.

But when Justin Baldwin, a graduate student at Washington University

in St. Louis, took a closer look at the data, something stood out.

They clearly seemed to be some species that were shrinking a lot and other species that were

shrinking much less. The question was, why were some bird species shrinking faster than others? Baldwin and his colleagues had a feeling

that bird behavior might be playing a role. In birds, species with bigger brains tend to be

smarter and can change their behavior based on their environment. That means they might be able to

buffer themselves from increasing temperatures, says Carlos

...