The first clue of communication among vervets came from the observations that biologist Thomas Strusaker made on vervets in Kenya s Amboseli National Park. Vervets utter grunt like calls when interacting with each other. Even to scientists who have spent years listening to vervets, all of the social grunts agreeably sound the same. When the grunts are recorded and displayed on a frequency spectrum, they look the same. Vervets are much more finely attuned to their calls than we are as humans.
Communication is the central, most pertinent factor in a sophisticated society.
Human beings have evolved into expressive and capable members of society. The human language has been around for five thousand years and it is apparent that language has been complex long before that. The human language differs greatly from animal communication. The human language is quite complex in that grammar and syntax play a major role in defining language. Animals have an extremely primitive way of communicating compared to humans, however, the gap between human and animal communication skills is slowly being bridged.