Archeologists studying dozens of ancient skeletons unearthed in northern England say they have found what appears to be a burial ground for Roman gladiators. Experts say new forensic evidence revealed Monday strongly suggests the 80 skeletons excavated from a building site in York were gladiators - professional fighters who often were killed while entertaining spectators. One of the skeletons had a large carnivore bite mark on the hip and shoulder that was likely inflicted by a lion, tiger or bear. Most others were stronger and taller than average Romans, with signs of arm muscle stress that suggest weapons training from an early age. Archeologists say that while the burial ground is not the first to be uncovered, it is among the best preserved.