Trut, L. N. 1995. “Domestication of the Fox: Roots and Effects.” Scientifur 19: 11–18.

Williams, G. C. 1957. “Pleiotropy, Natural Selection, and the Evolution of Senescence.” Evolution 11: 398–411. См. также: Eaton, S. G., et al. 1994. “Women’s Reproductive Cancers in Evolutionary Context.” Quarterly Review of Biology 69: 353–367.