Most animals can digest the cellulose in grass because of the anaerobic bacteria called *Fibrobacter succinogenes* living in their rumen (gut). The bacteria produces the enzyme cellulase and is therefore able to break down the β-Glucans(1,4) glycosidic bond in the cellulose. Animals like cows and giraffes grow up to be very large simply on a diet of grass!Is there a way for humans to ingest the *Fibrobacter succinogenes* bacteria and be able to digest cellulose?
