Figure 1: Broad-Footed Mole tracking map The habits of the broad-footed mole are being studied by the USDA Forest Service. A biologist attached a tiny transmitting radio to the ear of a broad-footed mole when sedated - the mole, not the biologist - so that the mole's movements could be tracked. The mole was then released the into its natural territory. Recording the movements of the mole continuously over several hours. the biologist found that it followed the path shown in the map below, where the points represent mole locations at 15-minute intervals and the lines show the actual path taken by the mole. Notice that if there is a comma between two numbered points then the mole stayed in that location or two consecutive 15-minute intervals (for example, "10, 11" or \"15, 16" or \"1. 2"]