Ancient Roman gladiators were often pitted against animals in the arena—animals capable of killing a human being. Skeletal remains in a Roman burial ground in northern England were found to have lesions that looked suspiciously like bite marks. Modern forensic techniques found that the teeth behind the marks probably belonged to a large feline, and the part of the skeleton that had been in the creature’s mouth further indicated it must have been a lion. Gladiators, for instance, fought each other—and often animals—to the death in arenas where bloodier was better. Lesions on either side of his pelvis were analyzed with three-dimensional scans, and were consistent with bite marks from a large feline.