I want to know the answer to the following question:
To what profession do both Leonard Lieberman and Fatimah Linda Jackson belong?
All the background I'm provided with is that "As the anthropologists Leonard Lieberman and Fatimah Linda Jackson observed, "Discordant patterns of heterogeneity falsify any description of a population as if it were genotypically or even phenotypically homogeneous".". Is that enough to answer the question?