Many animals use signs to communicate with other members of their species. Some species of bees, for instance, use dances to indicate the location of a source of nectar. Human beings, however, occupies the human language as a privileged place among sign systems. It is a particularly elaborate sign systme that has properties not manifested in other sign systems. The human language differs from the other animals' languages or signaling systems. There are some unique features in human language that the American linguist Charles Hockett proposed as a set of design features of human language, a set of features satisfied by all human languages that distinguishes them from other sign systems. This set has undergone modifications and addigions since it was first porposed by Hockett (1996). Below are six of the most important features (McGregou, 2009).