Why don't apes other than Caesar speak English?
The accepted answer on the question Other apes with gained intelligence? says about Maurice (Orangutan):
This big ape did not gain intelligence from treatment but he knows sign language because he was in circus in the past.
In the movie War for the Planet of the Apes it's seen that all other apes are speaking in sign language to one another, considering they may have learned it from Maurice. While Caesar speaks to apes in English they seem to understand, but they reply in sign language.
Caesar speaks in English almost every time, he could have taught the other apes English other than sign language. The wiki says that the third movie takes place two years after the second one. Why didn't Caesar teach them English?
Best Answer
First of all, the other apes do speak English from time to time, but not as much as Ceasar (Koba for example speaks very broken English in Dawn).
If you recall from other films, Ceasar speaks more and more over time. The virus that gave the apes enhanced intelligence has allowed them to evolve genetically and speech is part of that evolution, but it doesn't happen all at once but is developed over time.
Ceasar speaks more than the others for the same reason he is their leader. He was given enhanced intelligence earlier than the rest of the apes so has evolved futher than they have.
Pictures about "Why don't apes other than Caesar speak English?"
Is Caesar the only ape that can talk?
\u201cApes always follows strongest branch\u201d Caesar says. But in the other two movies, I notice that the only apes who spoke were the ones who either defy Caesar (Koba, Donkey) or helped him (Blue-Eyes, Bad-Ape). However, all the other apes reserved their communication to just sign language.Can an ape speak English?
In the real world, apes can't speak; they have thinner tongues and a higher larynx, or vocal box, than people, making it hard for them to pronounce vowel sounds.Why can some apes talk in Planet of the Apes?
In all seriousness though the premise is supposed to be that Cesar is so intelligent that he becomes more and more like humans, which gives him the ability to speak. Scientifically, that is absurd because chimpanzees are not limited by their intelligence, but instead lack the vocal mechanisms to form spoken words.Can any monkeys speak English?
Some primates have learned how to communicate in specific ways with their human handlers. One famous case is Kanzi, a 33-year-old bonobo. Scientists who worked with Kanzi think bonobos can understand English. "Kanzi, for example, could figure out human sentences \u2014 even nonsense sentences," Bekoff said.Why Don't We - Fallin' (Adrenaline) [Official Music Video]
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Andrea Piacquadio, Andrea Piacquadio, George Milton, William Fortunato