The chimpanzees are at first welcomed as celebrities. But as the truth of Earth's future unfolds Man becomes afraid and attempts to sterlize the Chimps to prevent their from being a great holocaust for man in the future. The chimps Zira and Cornelius were killed. They did have one ape child and he secretly was found and kept by a circus performer Armando. In the fourth movie Conquest of the Planet of the Apes the basic events that set up Man's downfall from power are shown.
Man becomes lazy and a plaque kills off most of humanity's favorite pets.
Primates such as chimmpanzees, Orangautauns, and Gorillias are trained and taught to be pets. At first they were just pets like any dog or cat, but their capacity to learn and perform tasks ultimately led to them being used as a system of slave labor. The movie ends with Caesar proclaiming that this is the birth of the Planet of the Apes. Man still is stong and in control but Apes will plot and scheme until man's downfall. The fifth movie Battle for the planet of the apes takes place far in the future Ceasar leads a group of human and Ape survivors and attempts to create a life of peace for all.