Los bonobos (o chimpancé pigmeo, Pan paniscus) practican sexo oral.

Vota!

Fuentes

1-

Manson, J.H.; Perry, S.; Parish, A.R. (1997). "Nonconceptive Sexual Behavior in Bonobos and Capuchins". International Journal of Primatology 18 (5): 767–86. doi:10.1023/A:1026395829818 http://dx.doi.org/10.1023%2FA%3A1026395829818 2-

Quiz: The surprises of animal sex BBC, 10 de febrero de 2011 http://www.bbc.co.uk/news/science-environment-12409270