Elizabeth Stacy (Life Sciences) and a large team of evolutionary biologists led by Rosemary Gillespie (University of California Berkeley) published a review article, Comparing Adaptive Radiations Across Space, Time, and Taxa in the Journal of Heredity. This paper reviews adaptive radiations across the globe to uncover commonalities and contrasts and to identify priorities for future research. The results provide insights into the external (environment) and internal (genetic) conditions that promote the diversification of life. The article is the first in the journal's freely available Special Symposium Issue that resulted from the American Genetic Association's 2018 President's Symposium, "Origins of Adaptive Radiation" in Waimea, Hawaii.