Doaa M. Mokhtar, PhD, is an Associate Professor in the Department of Anatomy and Histology, Faculty of Veterinary Medicine, at Assiut University, in Egypt. She is an Editor with the American Journal of Life Science Research as well as a reviewer for several journals, including the International Journal of Molecular Zoology, the Journal of Microscopy and Ultrastructure, and the British Journal of Medicine and Medical Research. Dr. Mokhtar is a member of Egyptian Society of Histology and Cytology and has published over 20 international publications in the field of fish and others. She teaches undergraduate and postgraduate courses on cytology, general histology of domestic animals, histology of the body systems, histology of avian, and histology of fish. In addition, she is a supervisor on PhD and master theses.