Darin Croft is an Associate Professor in the Department of Anatomy at Case Western Reserve University in Cleveland. He received his B.A. from The University of Iowa and his M.S. and Ph.D. from The University of Chicago. He spends most of his time teaching human anatomy to medical and graduate students at Case and investigating the fossil mammals of South America. He has active field programs in the Andes of Chile and Bolivia, and his research spans alpha taxonomy (describing new species), phylogenetics (how animals are related), paleoecology (how extinct animals lived and interacted with each other), and macroecology (large scale trends in species diversity and community evolution). Many of his investigations focus on a group of endemic (and now extinct) mammals called notoungulates.