CRANFIELD, England, April 25 -- Cranfield University issued the following news release: * * * Study sinks its teeth into human-animal gladiatorial combat * Research uncovers first ever physical evidence of human-animal combat in Roman times * 3D bone analysis uncovered big cat markings An exciting new research study has uncovered the first ever physical evidence for human-animal gladiatorial combat in the Roman era. Detailed analysis of bite marks on the pelvis of a skeleton exhumed from a more PR