Research overview: reconstructing the appearance and mane of the American lion

This overview surveys efforts to reconstruct how Panthera atrox looked, including the contentious question of whether males bore a mane like modern African lions. Because the American lion descends from cave-lion ancestors, and because Upper Paleolithic art depicts European cave lions as apparently maneless or only modestly maned, some researchers infer that atrox may also have lacked a full mane. The survey reviews the limited direct evidence, the use of related cave-lion depictions and genetics as proxies, and debates over coat pattern, social signalling, and sexual dimorphism. It discusses why soft-tissue features like manes are so difficult to recover from bones alone, and how art, ancient DNA, and comparative anatomy together constrain reconstructions of this iconic extinct cat.