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.com.j.

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 Americans' 60-second science.

I'm Jason Goldman. Got a minute?

You may have noticed that gulls can be pretty aggressive when it comes to grabbing food,

but that behavior is more intense than you may know.

Some kelp gulls snack on baby whales.

Live baby whales.

In the early 1970s, only a handful of southern right whales were fed upon by kelp gulls snack on baby whales. Live baby whales. In the early 1970s, only a handful of southern right whales were fed upon by kelp gulls off the coast of Argentina's peninsula Valdez.

Back then, just 2% of calves every year had to suffer at the beaks of the gulls, along with some of their

mothers. But now, 99% of the calves have to contend with hungry gulls driving their hooked

beaks deep into their backs, ripping out chunks of skin and flesh and blubber and gobbling it all up.

The finding is in the journal Plus One. Each gull has its own whale and it protects it.

University of Utah biologist Victoria Roundtree. Or maybe two gulls will have its own whale, and they'll chase off any gulls that come in,

and they just sit in the water and waiting for the whale to surface again, they're relentless.

Adult whales have learned to arch their backs when they surface to breathe,

keeping most of their body away from the hungry gulls, but the newborns can't do that.

But you can see the mother's getting so annoyed when finally she's been able to sleep and she

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