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.

.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.

Homo sapiens has an outsized influence on the behavior of other animals. We have long

hunted them, and more recently, we destroy habitats to build housing and coffee shops, and we

build roads to drive from our houses to those coffee shops.

But some of our influences are far more subtle. My collaborators and I had noticed a striking pattern in some of our own data

from far-flung places like Tanzania, Canada, Nepal,

where animals that we were studying seem to be more active at night when they were around people.

University of California-Berkely Caitlin Gaynor. To see if animals really

were changing their activity schedules, Gaynor and her team rounds it up 141 studies of 62 kinds

of mammals from across six continents. And they found that mammals near people across the

globe have settled on a new strategy for survival. They take to the night when most of us are

comfortably tucked into our beds counting sheep. The finding is in the journal Science. For example,

an animal that would ordinarily prefer to spend half its active

time during the daytime and half at night shifts to two-thirds of its active time under darkness.

And our particular human behaviors do not seem to matter. Something that surprised me in the

study was just how consistent the shift towards nocturnality was across types of

human disturbance. We had expected to see animals being a little bit more discerning and perhaps

...