grease

This term refers to a distinctive dark, oily residue left behind by rodents, particularly rats, as they repeatedly travel along established pathways. This accumulation is a mixture of the animal’s body oils, dirt, and sometimes urine, which adheres to surfaces over time. It serves as a tell-tale sign of an active or recent rodent infestation, indicating their frequent routes of movement within a structure. For instance, one might observe these greasy smudges along the bottom … Read more