Need an research paper on language development in animals and humans. Needs to be 11 pages. Please no plagiarism. It allows for understanding the way the language is acquired and employing this to teach and learn foreign languages and correct the possible errors of the mother tongue. Language acquisition presupposes the development of four key language skills: listening, reading, speaking, and writing. According to today’s psychological theories, the native language (together with the second one, in the case of bilingualism) is developed completely in the years of childhood, while foreign languages are mastered during the entire lifetime.The development of language in humans is important to study because of practical reasons, such as languages studying and teaching and increasing of efficiency of these processes, and from the theoretical perspective to understand why this phenomenon is observed only in human beings and how it distinguishes a human being from other species of the animal world.The method of research which will be used in this article is the analysis of the information from the academic journal articles related to the topic of the present research paper. The use of the above-mentioned research method makes it possible to give the results of the literature studying in terms of language development from a psychological point of view. To better understand the results of the studies it is necessary to give short definitions of general concepts, such as language and language development.It is possible to give such a definition of a language: “an organized system of arbitrary signals and rule-governed structures that are used as a means for communication”. (Brandone, Salkind, Hirsh-Pasek 2006). Everyday life of modern society is impossible without language because it is necessary to exchange information to support the functioning of each element, a human being: employing language people receive important information, such as dates of certain events, different timetables, working schedules, and many other pieces of information which regulate and influence their activity. Language can also be used for transmitting information without direct communication of its speakers, for example, employing advertisements, commercials, or other means of external information placement.