Do we assume this is a dumb animal? How about a smart animal with a large brain that can sense or smell you humans from miles away? You can disappear in the wild even though you are being sought:
Bio: Troy James Knapp has been evading capture for nearly seven years. Funny thing is, police didn't even know who they were tracking until early 2012. The legend of the mysterious "Utah Mountain Man" began in 2006 with a series of break-ins of high resort style cabins. He stole from the rich, and kept all his loot for himself. Over the seven years he stole from an area the size of Delaware. Authorities attempting to track him would think they were close one day, only to find out there was another cabin break-in fifteen miles away later that day. This guy would get by making shelters from anything and everything: tarps, caves, earth mounds, but most notoriously in seasonal cabins.
So how did police catch a guy who they couldn't identify? Well in 2012 he finally started to slip. Not only was he starting to leave clues, but he was caught on a hidden game camera. This image is from early in the year when officials were finally able to pin the criminal as Troy Knapp.