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.

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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.'m Karen Hopkin. Got a minute?

We've all heard the adage, Monkey See Monkey Do, but it is literally true. If a monkey sees you looking at something, it will look to.

Now, a study shows that this tendency for a monkey to track what another's looking at is age-dependent,

and in a very similar way to the same

behavior in people. The ability to what's called gaze follow is a fundamental skill that underlies

our social lives. When we turn to see what other people see, we recognize their interest and

join in their curiosity or concern. Stand on a busy street corner and look up. It won't be long before

you have a crowd of people trying to see what it is you're looking at. And other primates do it too.

Researchers studied a large population of free-ranging macaques on an island off Puerto Rico.

One scientist would approach a macaque that was sitting by itself and would attempt to get its

attention by clapping or snapping, or by saying,

monkey, monkey.

That's lead investigator Alexandra Rosati of Harvard.

When the macaque made eye contact, Rosati would look straight up in the air.

A second researcher would film the interaction to see whether the monkey also looked up.

The humans pulled the same stunt on nearly 500 monkeys

of all different ages, from infants just two weeks old to elders of 28 years. And they found

...