An artist has tried to capture the two most likely conveyances used to create the ruts: a wheeled cart and a travois fitted with stone “shoes.” The only problem is that tracks made by animals pulling a vehicle usually show some kind of treaded pathway in the middle, where the animal walked repeatedly. No such treads are found in any of Malta’s tracks. One explanation is that there was more grass and ground cover at the time, or than humans, with their more variable gaits, pulled the load. Illustration: Heritage Books, Heritage Malta.