What is the best primates in terms of communicating with each other (not humans)?

Question: What is the best primates in terms of communicating with each other (not humans)?
- Keywords:
  animal,
  animal behaviour,
  communication,
  language
Asked by barnabi11 to Suzanne on 28 Jun 2013.
- Suzanne Harvey answered on 28 Jun 2013:
  
  I would definitely say chimps – their communication is so sophisticated that they can lie and manipulate each other, just like humans do…

Question: What is the best primates in terms of communicating with each other (not humans)?