End Note

All in all the use of communication is a quality that does not only apply to humans. The animal kingdom possesses a vast range of communication in the form of body language making it possible to interact with humans without any use of acoustic communication. These abilities of various species, along with human capabilities, are able to come together to create a universal form of communication. Through comparative studies, some evolutionary origin has been found to be shared between humans and chimpanzees with regards to certain facial expression which could provide some history in the process of how human facial expression has developed over time.

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