Desmond Morris (1967), p. 5.
191
Detlev Ploog and Paul MacLean (1963).
192
Wolfgang Wickler (1969); Desmond Morris (1977).
193
Tanya Vacharkulksemsuka et al. (2016).
194
For more about female choice, see Chapter 7.
195
Edgar Berman (1982).
196
Richard Harlan (1827); Anna Maerker (2005).
197
Emmanuele Jannini et al. (2014); Rachel Pauls (2015); Nicole Prause et al. (2016).
198
Thomas Laqueur (1990), p. 236.
199
Natalie Angier (2000).
200