Future advances in human health will continue to depend on basic discovery research in developmental biology, and on the recruitment of a strong and diverse pool of talented researchers to that field. Developing Future Biologists is a one-week intensive laboratory course developed by doctoral and postdoctoral trainees at the University of Michigan (U-M), with the advice and assistance of faculty members. The DFB course introduces modern concepts and techniques in developmental biology to undergraduate students in underserved populations. The course, which was created by a diverse group of graduate and postdoctoral trainees, aims to recruit talented students into the field, especially those who would not otherwise be aware of the excitement of developmental biology research; to increase diversity among trainees in the field; to develop professional skills in the trainees who develop, plan, and teach the course; and to improve the climate of diversity and cultural awareness among trainees and faculty at the University of Michigan. The DFB course was taught in 2015 and 2016 in Ponce, Puerto Rico. Assessment of the impact of DFB on the students who took the course, on the Michigan trainees and faculty who desgined and taught it, and on graduate recruitment at U-M, will be discussed.