Are you a hunter?  After you get your deer or game it turns out there's something to be learned from what is left behind - that offal gut pile. 

nounnoun: offal; plural noun: offals

Are you a deer hunter, live with someone who is, or has a friend or relative who hunts deer?

The University of Minnesota researcher, Joe Bump and his graduate student, Ellen Candler are doing research to better understand what and when animals use deer gut piles provided by hunters across Minnesota.