Researchers have singled out a bacterial enzyme behind an imbalance in the gut microbiome linked to Crohn's disease. The new study suggests that wiping out a significant portion of the bacteria in the ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Urea is a small molecule formed as proteins ...

How you manage the mix in cornfields can determine whether the nitrogen feeds your crop or disappears into thin air.