Child kangaroo feces would possibly assist present an unlikely answer to the environmental downside of cow-produced methane. A microbial tradition developed from the kangaroo feces inhibited methane manufacturing in a cow abdomen simulator. After researchers added the newborn kangaroo tradition and a identified methane inhibitor to the simulated abdomen, it produced acetic acid as a substitute of methane. Not like methane, which cattle discard as flatulence, acetic acid has advantages for cows because it aids muscle progress.