I'm not sure how eating one's own feces would affect the microbiome but Coprophagia is not unusual for many different species. Without a ruminant's multi-chamb

I'm not sure how eating one's own feces would affect the microbiome but Coprophagia is not unusual for many different species. Without a ruminant's multi-chambered digestive system (see: cattle, deer), animals like rabbits actually have to eat once digested food in order to extract the full nutrients from hard to digest grass and plant matter.