Summary

Part I, Chapter 17 – Human sexual behavior is studied for several weeks. The men approach the girls in a dance before mating, like birds. Ulysse will not have sex with Nova, even when prodded with a pike. His refusal confounds Zira, who clearly still sees him as an animal. Zaius appears and has Nova switched out for an old woman. Nova is put into a cage with a burly man who begins to dance about her. Enraged, Ulysse rails against the cage. Zaius smiles and has the old woman replaced with Nova. Ulysse then attempts the dance, knowing he has no choice. He is humiliated.

Part II, Chapter 1 – Ulysse settles into a routine in the cage, happy to be with Nova. The monkeys run out of tests to run and struggle to come up with new ones. Ulysse finally see...