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

This is Scientific American 60-second science. I Christopher Ndalata. Got a minute?

If you cozy up to a campfire this summer,

ponder what Charles Darwin called, quote,

probably the greatest discovery ever made by man,

the control of fire.

The anthropologist and primatologist Richard Rangham

has argued that the control of fire,

and thus cooking, has actually shaped our bodies and our brains. But cooking isn't just about controlling fire. When you think about cooking, it actually has a lot of really complex components.

Yale psychologist Alexandra Rosati. So you have to plan for the future, you have to have some self-control

by refraining to eat raw food you already have right now, you might want to have some causal reasoning

to understand how cooking transforms the food. She and her colleague Felix Varnikin at Harvard

wanted to know if chimps also possess these basic cognitive qualities,

even though they don't cook or control fire.

So they performed a series of experiments in a chimps sanctuary in the Republic of Congo.

They confirmed, as past studies have, that chimps prefer cooked over raw food.

But they also found that chimps will patiently refrain from eating raw food, right front of them if they think there's a chance it might get cooked. The chimps will even load raw food into what they

thought was a cooking device. In reality, a container with a false bottom, by which researchers would

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