To make sure they found the right microbes in action, they used a cow that had a hole surgically opened right into its rumen. The researchers needed to find the bacteria that worked in airless environments like a cow’s insides.
Rubin’s team used metagenomics, a gene-sequencing approach that maps the DNA of a community of organisms instead of one single creature or plant.
Read more on PlanetArk (story sourced from Reuters)