The article discusses embryology based on the works of philosopher Philo of Alexandria focusing on his views and writings on philosophy, history, ethics on biology. It is noted that Philo never studied or practiced medicine and was influenced greatly by Greek philosopher Plato. Work done by Azariah de' Rossi entitled Me'or ‘Einayim mentions Philo. Philos ideas on embryology and fetal development in the woman's womb are discussed.