You’ve probably seen cows enjoying a nice mouthful of grass, but why can't we do the same?


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Sources:
http://dujs.dartmouth.edu/2011/02/tur...
http://www.fda.gov/AnimalVeterinary/R...
http://science.jrank.org/pages/1335/C...
https://www.britannica.com/animal/rum...
https://www.mun.ca/biology/scarr/Rumi...

Cellulose:
https://www.britannica.com/science/ce...
http://antoine.frostburg.edu/chem/sen...
http://chemistry.elmhurst.edu/vchembo...

Hydrolysis/Fermentation Inside Rumen:
https://www.britannica.com/science/hy...
http://bioenergycenter.org/besc/publi...
http://web.mit.edu/pweigele/www/Towar...
https://famsbc.wordpress.com/2009/07/...
http://www.publish.csiro.au/?act=view...
http://www.eng.umd.edu/~nsw/ench485/l...
http://pubs.acs.org/doi/abs/10.1021/j...
http://arbl.cvmbs.colostate.edu/hbook...
http://mmbr.asm.org/content/66/3/506....

Microbes in Humans:
https://www.researchgate.net/publicat...
http://www.innerbody.com/anatomy/dige...
http://www.livescience.com/52026-colo...


Image Sources:
https://en.wikipedia.org/wiki/Cellulo...
https://en.wikipedia.org/wiki/Ruminan...
https://en.wikipedia.org/wiki/Cellula...
https://en.wikipedia.org/wiki/PH#/med...