Dr Jean-Marie Exbrayat is a Professor at Lyon Catholic University and Ecole Pratique des Hautes Etudes (France). He obtained a PhD in 1977 at the University of Montpellier (France), and a D. Sci. in 1986 at Paris 6 University. Being the head of a research unit, his research concerns the reproductive biology of bony fishes, amphibians, reptiles, mammals especially rodents, and some invertebrates, related to the environmental conditions comprising pollution, and embryonic development of rare animals. Among the methods used, histology was adapted to the study of preserved animals. Dr Exbrayat was the head of a specialized course in histology, and teaches animal biology, histology, embryology, history and philosophy of sciences. He supervised or co-supervised 28 PhD. He is the author or editor of 14 books, and numerous publications and communications in animal biology as well as in interdisciplinary works. He is a member of several scientific societies and international institute. He is member of editorial boards and reviewer for international journals, a co-editor of the collection "Science, History, Philosophy" published by a French Publisher, and president of the Interdisciplinary Institute of Epistemological Studies (IIEE).