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This is Scientific Americans' 60-second science.

I'm Jason Goldman. Got a minute?

That means danger to a chimpanzee. Chimps use this call known as an alert who to warn each other about a potential threat like a dangerous snake on the forest floor.

And researchers have now used recordings of that call to get inside the chimpanzee mind.

There is more studies showing that various animals seem to be able to take another's perspective into account to a certain extent.

They seem to be able to understand what another one sees

or doesn't see, for example. Catherine Crockford, a primatologist at the Max Planck Institute for

evolutionary anthropology in Germany. Crockford and her team traveled to Uganda's Budongo Forest

to study the ability of chimps to modify their calls based upon the knowledge of others.

They hit a fake snake on the ground and then used a loud speaker to broadcast chimp calls.

In some cases, the speaker played that alarm call, the alert who, suggesting to listeners that

nearby chimp was aware of the snake. But in other cases, the speaker

played a different kind of call called a rest who. This non-alarm told listeners of the

chimp they were hearing was not aware of any snake danger. And when the chimps who had heard

the rest who came across the fake snake, they gave ample warnings using both their alarm calls and body language. But when chimps heard the rest who came across the fake snake. They gave ample warnings using both their alarm calls and body language.

But when chimps heard the alarm call before encountering the fake snake,

...