This question is specifically about the 2014 film Dawn of the Planet of the Apes.
In the film, we know that certain non-human apes can speak.
We also know that Caesar was the first of them to do so.
I was wondering if all of the non-human apes can speak and it just isn't shown, or only certain ones can.
In the film, we see these non-human apes (and related species) talk (as far as I remember):
- Blue Eyes
- Maurice (Although only one word I think)
However, these are all very close to Caesar and so he might have taught them to speak. Yet, Caesar was able to teach himself, so others might have been able to as well.
Do we know if all intelligent (affected by the virus) non-human primates can speak or only select ones?
In or out of universe answers are acceptable.