Nieuwenhuijsen, K. 1985
Nishida, T. 1996. The death of Ntologi: The unparalleled leader of M Group.
Nishida, T. 2012
Nishida, T., and K. Hosaka. 1996. Coalition strategies among adult male chimpanzees of the Mahale Mountains, Tanzania. In
Nolen-Hoeksema, S., B. E. Wisco, and S. Lyubomirsky. 2008. Rethinking rumination.
Nussbaum, M. 2001.
O"Connell, C. 2015.
O"Connell, H. E., K. V. Sanjeevan, and J. M. Hutson. 2005. Anatomy of the clitoris.
O"Connell, M. 2017.
O"Toole, A. J., et al. 1998. The perception of face gender: The role of stimulus structure in recognition and classification.
O"Toole, A. J., J. Peterson, and K. A. Deffenbacher. 1996. An «other-race effect» for classifying faces by gender.
Oakley, K. 1950.
Orbach, D., and P. Brennan. 2019. Functional morphology of the dolphin clitoris. Presented at Experimental Biology Conference, Orlando, FL.
Ortiz, A. 2020. Diego, the tortoise whose high sex drive helped save his species, retires.
Palagi, E., and E. Demuru. 2017. Pan paniscus or Pan ludens? Bonobos, playful attitude and social tolerance. In
Palagi, E., et al. 2020. Mirror replication of sexual facial expressions increases the success of sexual contacts in bonobos.
Palagi, E., T. Paoli, and S. Borgognini. 2004. Reconciliation and consolation in captive bonobos (Pan paniscus).
Paresky, P. B. 2019. What"s the problem with «traditional masculinity»? The frenzy about the APA guidelines has died down. What have we learned?
Parish, A. R. 1993. Sex and food control in the «uncommon chimpanzee»: How bonobo females overcome a phylogenetic legacy of male dominance.
Parish, A. R., and F. B. M. de Waal. 2000. The other «closest living relative»: How bonobos (Pan paniscus) challenge traditional assumptions about females, dominance, intra-and inter-sexual interactions, and hominid evolution.