A very interesting ancestral theory
Ever wonder why some dogs seem to savor eating feces—their own, and sometimes that of other dogs? It’s understandable how upsetting this habit would be to their humans, and a team of researchers from the Center for Companion Animal Health, University of California, Davis, tried to get to the bottom of this problem. (pun intended)
Their findings were presented in their study report, titled, “The paradox of canine conspecific coprophagy.” The word conspecific denotes animals from the same species; so, while some dogs are attracted to stools of other species like cows, horses or cats, they were not considered. This study only focused on those who favored the canine variety.
via Whisker Therapy