Globe Skimmer
What percentage of the population could you plausibly have a child with? Come learn about a species that may have acheived global panmixia.
Bibliography: https://docs.google.com/document/d/1JpZAzmg7ZCuT4I3hzm_J3Xa_qZiPM0l_M1kp94XAohc/edit?usp=sharing