Islam is the only biblical religion that still practices animal sacrifice. Indeed, every year more than a million animals are shipped to Mecca from all over the world to be slaughtered during the Muslim Hajj. This multi-disciplinary volume is the first to examine the physical foundations of this practice and the significance of the ritual. Brannon Wheeler uses both textual analysis and various types of material evidence to gain insight into the role of animal sacrifice in Islam. He provides a 'thick description' of the elaborate camel sacrifice performed by Muhammad, which serves as the model for future Hajj sacrifices. Wheeler integrates biblical and classical Arabic sources with evidence from zooarchaeology and the rock art of ancient Arabia to gain insight into an event that reportedly occurred 1400 years ago. His book encourages a more nuanced and expansive conception of sacrifice in the history of religion.