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Trut, Lyudmila N. (1999). «Early Canid Domestication: The Farm-Fox Experiment: Foxes bred for tamability in a 40-year experiment exhibit remarkable transformations that suggest an interplay between behavioral genetics and development». American Scientist. 87: 160–169. JSTOR27857815. doi:10.1511/1999.2.160. ProQuest215262475