We have man to thank for the rise of the planet of the apes.
Caesar inherited his mother’s intellect, thus setting him on his legendary path.
Bright Eyes was the first to be injected with the ALZ-112, and she soon showed signs of intellectual enhancement, but when she escaped her cell and went on a rampage in the Gen-Sys headquarters, she was fatally shot.
However, before that happened, Bright Eyes had secretly given birth while in captivity, and Rodman agreed to take the baby ape, whom he named Caesar, home rather than let him be euthanized like the other test subjects.