Last Fall we put in a GeoThermal thingy-jig, and our yard is still kinda dirt-y from it. Yesterday, Chipper actually went over and ATE some of the dirt.... why would he do that???
I know this from experience: many a time he's broght us dead things, or various parts of them... at one point in time you could create a whole animal from all of the parts he's found. I also watched him eat a whole baby groundhog....He's a dog. I can guarantee you he will eat grosser things than that if given the chance.