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4 Darwin, Charles, "The Origin of Species" John Murray 1872
5 Darwin, Charles, "The Expression of the Emotions in Man and Animals" Filiquarian 2007
6 Baumeister, Roy F., "The Cultural Animal: Human Nature, Meaning, and Social Life" Oxford UP 2005
7 Walker, Alice, "The Color Purple" Harcourt 1982
8 Calhoun, Cheshire, "Subjectivity and Emotion in:Thinking about Feeling: Contemporary Philosophers on Emotions" Oxford UP 2004
9 Murphy, Michael R., "Species-Typical Behavior of Hamsters Deprived from Birth of the Neocortex" 213 : 459-461, 1981
10 Wilson, Edward O., "Sociobiology: The New Synthesis" Harvard UP 2000
1 Schwabl, Hubert, "Yolk is a source of maternal testoterone for developing birds" 90 : 11446-11450, 1993
2 Plato. Phaedrus, "Walter Hamilton" Penguin 1973
3 Tooby, John, "The Psychological Foundation of Culture in:The Adapted Mind: Evolutionary Psychology and the Generation of Culture" Oxford UP 1992
4 Darwin, Charles, "The Origin of Species" John Murray 1872
5 Darwin, Charles, "The Expression of the Emotions in Man and Animals" Filiquarian 2007
6 Baumeister, Roy F., "The Cultural Animal: Human Nature, Meaning, and Social Life" Oxford UP 2005
7 Walker, Alice, "The Color Purple" Harcourt 1982
8 Calhoun, Cheshire, "Subjectivity and Emotion in:Thinking about Feeling: Contemporary Philosophers on Emotions" Oxford UP 2004
9 Murphy, Michael R., "Species-Typical Behavior of Hamsters Deprived from Birth of the Neocortex" 213 : 459-461, 1981
10 Wilson, Edward O., "Sociobiology: The New Synthesis" Harvard UP 2000
11 Blanchard, Robert J., "Social Dominance and Individual Aggressiveness" 14 : 195-203, 1988
12 Watkins, Mel, "Sexism, Racism and Black Women Writers" 15 : 1986
13 Jenkins, Candice M., "Queering Black Patriarchy: The Salvific Wish and Masculine Possibility in Alice Walker’s The Color Purple" 48 : 969-1001, 2002
14 Trivers, Robert L., "Parent-Offspring Conflict" 14 : 249-264, 1974
15 Ekman, Paul, E., "Pan-Cultural Elements in Facial Displays of Emotion" 164 : 86-88, 1969
16 Harris, Trudier, "On The Color Purple, Stereotype, and Silence" 18 : 155-161, 1984
17 Bradley, David, "Novelist Alice Walker Telling the Black Woman’s Story" 8 : 24-37, 1984
18 Storey, Robert, "Mimesis and the Human Animal: On the Biogenetic Foundations of Literary Representation" Northwestern UP 1996
19 Geertz, Clifford, "Interpretations of Culture" Basic Books 1973
20 Walker, Alice, "In Search of Our Mothers’ Garden: Womanist Prose" Harcourt 1983
21 Kagan, Jerome, "Galen’s Prophecy: Temperament in Human Nature" Basic Books 1994
22 Kerr, Michael E., "Family Evaluation: An Approach Based on Bowen Theory" Norton 1988
23 Damasio, Antonio R., "Descartes’ Error: Emotion, Reason, and the Human Brain" Grosset & Putnam 1994
24 Sulloway, Frank J., "Born to Rebel: Birth Order, Family Dynamics, and Creative Lives" Vintage 1997
25 Bowlby, John, "Attachment. Vol. 1 of Attachment and Loss" Basic Books 1969
26 Bowlby, John, "A Secure Base: Parent-Child Attachment and Healthy Human Development" Basic 1988