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

This is Scientific American's 60-second science. I'm Christopher in Taliatta.

Over the last year, beekeepers in the U.S. lost nearly half their honeybee hives,

and there are a lot of suspected culprits for this so-called bee-pocalypse,

from parasitic mites to viruses to simple land use changes.

But a study out earlier this year pointed to another possibility,

poor sperm quality among the drone bees, leading to colony crashes. And now another group of

researchers may have found a reason for the subpar sperm, neonicotinoid pesticides. These substances

contain chemicals similar to nicotine and affect insect nervous systems.

The drones that were exposed to the pesticides during their development, it appears that there

were just more dead sperm in their reproductive tracks.

Jeff Williams, an entomologist at the University of Bern in Switzerland and Agroscope,

a Swiss federal research facility.

Williams and his colleagues studied the effects of two neonicotinoid pesticides on honeybee drones, genetically assigned to mate with queens.

They're a bit bigger and they have really big eyes just so they can really identify

these queens that are flying through the air.

They eat and have sex, or try to have sex at least.

But in 20 honeybee hives, Williams and his collaborators found that those drones exposed to

...