GLOUCESTER, ENGLAND—A cat’s paw prints were spotted on a first-century Roman roof tile unearthed in Gloucester in 1969 by an archaeologist who had been looking through the thousands of tile fragments stored at the Gloucester City Museum. “When Romans made roof tiles they left the wet clay out to dry in the sun. Animals, and people, sometimes walked across the drying tiles and left their footprints behind,” a museum spokesperson told The Telegraph. “Dog paw prints, people’s boot prints, and even a piglet’s trotter print have all be found on tiles from Roman Gloucester, but cat prints are very rare,” added Lise Noakes, cabinet member for culture and leisure at Gloucester City Council. To read about some of those types of dog prints, and much more about the roles of ancient dogs, go to "More Than Man's Best Friend."