Natural History of the Vertebrates: Field Experience06/27/2016 02:27:41 PMtrueSaint Xavier University's (SXU) Department of Biological Sciences Professor Randolph Krohmer, Ph.D., Associate Professor Tatiana Tatum-Parker, Ph.D., and Associate Professor David Elmendorf, Ph.D., led a new, total immersion field course this past month.imgMon, 27 June 2016 14:27:41 -08002016