The Differences Between Small and Large Community Languages

I feel like orangutans and animals are cool enough in themselves. We don't need to be primate positive. What strikes me is that the communication they use looks different for communities of different sizes, just like with humans. How do we mention that if you have a small community language looks a certain way? If you've got a huge community, language is going to look a different way. People are still arguing about what it is that's going on.