Teresa Romero et al. (2010).
321
Robert Sapolsky (1994).
322
David Watts et al. (2000).
323
Christopher Boehm (1999), p. 27.
324
Frans de Waal (1984); Christopher Boehm (1994); Claudia von Rohr et al. (2012).
325
Jessica Flack et al. (2005).
326
Rob Slotow et al. (2000); Caitlin O"Connell (2015).
327
Aaron Sandel et al. (2020).
328
Nancy Vaden-Kierman et al. (1995);
329
Martha Kirkpatrick (1987).
330