EXETER, England, March 30 -- The University of Exeter issued the following news: * * * Radical study of medieval warhorses set to be unveiled in new book The most comprehensive study of medieval warhorses ever undertaken will be released in the form of a radical new book this week. Based upon extensive archaeological and historical research, including the study of bones and DNA, armour and art, Medieval Warhorse: Equestrian Landscapes, Material Culture and Zooarchaeology in Britain, AD800-15 more PR