Dr. Mary Logan Reddick contributed to the scientific understanding of embryonic development through her studies on chicken embryos. She enrolled at Spelman College at just 15 years old. She earned a master’s degree in science and another in biology. To earn her doctorate degree, she studied how chicken embryos could be used to inform human embryo development. Dr. Reddick’s 30 years of research provided useful insights into the development of the organs, the nervous system and the effects of a cell position on development.