Ioannis Grivas is an Associate Professor of Anatomy, Histology, and Embryology at the School of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki. He received his Ph.D. from Aristotle University of Thessaloniki in 2006. His research focuses on Neuroanatomy and the design of experimental animal models but also extends to other topics of Anatomy, Histology, and Embryology. He is currently investigating the vascularization of the hippocampus in aged and TgF344-AD rats, the comparative anatomy of the adrenal glands, and the contribution of large animal models to osteoarthritis research.