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.j.p.

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

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

This is Scientific American 60-second science. I'm Emily Schweng.

Whales move by beating their tails.

Paolo Segre is a postdoctoral researcher at Stanford.

They've got these large muscular tails, which they can move, and that's what powers them forward.

And they use their flippers, sort of extended out to the side to maneuver. He and colleagues actually affixed

cameras onto humpback whales in the hope of learning more about how they move in their marine

habitat. And those cameras caught a glimpse of something completely unexpected.

We basically got video evidence of whales actually flapping their flippers, much like a bird flaps its wings, in order to power their forward swimming.

Seigre calls the discovery novel, which is science speak for never before noted.

The flipper-powered push may come in handy, especially when the whales engage in lunge feeding, opening their giant mouths, then quickly moving forward to take in hundreds of gallons of water and its edible contents.

Most of what we used to know about whales was from the whaling industry, from dissections of whales

that washed up on shore, or from those brief glimpses that we got when we're sitting on a boat

and see them surface while they're breathing.

The findings are in the journal Current Biology.

Segre says the newly discovered propulsion method is likely unique to the humpback whale,

which is known for its very long and extremely mobile flippers. The finding might even lead to

...