IntroductionLinguistics classifies language as a mechanism that allows the free and creative expression of feelings into signs, and the opposite interpretation of such signs into feelings (Christiansen & Kirby, 2005 ). According to Becker, 2005, “human language is seen as the last key evolution in the development of life on earth (2)”. His idea is that biological changes in humans are the result of evolutionary forces that imply that human language originated from certain sources and that its characteristics derive from human genes. Language itself constitutes a distinction between various animal communication systems as it allows the creation of infinite symbols through the innovative fusion of finite vocabulary, using recursions (Caplan et al., 1984). In this regard, language is similar to the genetic code, which uses a limited set of DNA bases to create numerous proteins. Although linguistics and psychologists are united in the concept that language is a natural system, a contradiction exists in how language originated. and evolved. The main theories are: grand change theory, gradual emergence theory, neo-Darwinian theory and genetic interaction theory (Aaron & Joshi, 2006). This article will analyze two theories that have a biological perspective of how language evolved. The two theories that will be highlighted are neo-Darwinian and gradual change with further emphasis on the predictions the theories make about the future. The Chomsky Great Shift Theory as qtd., by Aaron & Joshi, proposed that language was innate, a biological entity requirement, species-specific, and had implications for genetic determination. This theory came after Chomsky defined universal grammar as a system of rules and principles that a... middle of paper... period. Descendants of humans who currently speak the current language that consists of the four levels may be using a human language that has extra levels due to natural selection processes. The gradual change of human language over time may be accompanied by adaptations that ultimately lead to the disappearance of the old human language system. Therefore the theory states that in one case there will be no possibility that two forms of human language exist. Conclusion The two theories of language evolution demonstrate that language in the future will not be the same as today. Although one advocates gradual change and the other sudden, both argue that evolution is random. Furthermore, theories have shown that the evolution of language corresponds to human evolution where at the end of the process a new language will be formed.