My character's grievously wounded unconscious dog followed my character "sleeping" the rest of the way home to the homestead from a trading trip (the injury was a warp out of hyperspace Nerp encounter on the way back; I don't "trade" like that). I then decided to check on the traps one tile away from the homestead, the dog followed, still unconscious, was there when I checked the traps, and didn't show up when I returned to the homestead. Looking for it, I found it dead on the overland map on the tile to the east of he one with the traps, and that tile happened to be a water tile, so I think it somehow drowned.