D. Aaron Riches is a Canadian theologian at Benedictine College in Atchison, Kansas. He was previously a theologian for the Seminario Mayor San Cecilio in Granada, Spain, and joint faculty member of the International Academy of Philosophy-Instituto de Filosofía "Edith Stein" and the Instituto de Teología "Lumen Gentium". He is widely published in the fields of systematic theology and Christology. His recent book, Ecce Homo: On the Divine Unity of Christ, questions the tendency to distinguish between the human and divine natures of Christ to such a degree as to oppose them.