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.

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This is Scientific American's 60-second science. I'm Christopher in Taliatta.

As soon as a person dies, decomposition begins, and the first visitors arrive.

Within five to 15 minutes of death, blowflies or other insects begin to colonize the body.

Rabimusa, an organic chemist at the University of Albany.

She says different species turn up at different stages of decomposition.

So because of that, depending upon what entomological evidence you find, you can learn something

about when the person died in terms of the timing of the death.

Flies don't tend to stick around when disturbed by detectives, for example.

But they do leave behind eggs. The eggs are hard to tell apart by appearance alone, so forensic

entomologists rear them until they hatch a few weeks later, and they get a species ID,

and with a little guesswork, a person's time of death. But Musa's come up with a less time-intensive

approach, chemical analysis of the eggs. She and her team investigated that method by first

harvesting flies with pig liver traps, stashed throughout New York City. So it turns out that it's

easy to hide pig livers in various parks and whatnot in Manhattan.

There's a lot of foliage and whatnot, and so they're easy to hide.

So no one knew.

They collected the trapped flies and then chemically analyzed their eggs.

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