Evolution of language

There is 2 parts for this assignment.  For the first part its  a research style assignment this part it includes sources. The second part it is a video with questions to answer no sources needed. First assignment :This will be a  research style assignment – nothing too formal though. Mostly, I want you to start thinking of these types of questions through the lens of natural selection. Once you do that, I want you to use what you have learned about critical thinking, evolution and genetics to start researching for your answer.    Please answer all questions in complete sentences. Please make sure that I am able to assess how it is that you reached your conclusion.    and  provide an informal list of references you used – links to websites are fine, or just stating the name of the chapter from the book is fine as well.       1. What is language? And how does this differ from other forms of non-human animal communication?    2. Using your understanding of natural selection, why would have language evolved in humans? Second assignment :Please make sure to watch the video on human species interacting and answer the following questions.  For full points, please answer all questions in complete sentences. Please make sure that I am able to assess how it is that you reached your conclusion.       Before you watch the video, answer this question.   1. The basic claim of the video is that anatomically modern humans interbred with other human species. What evidence would you expect to find that would support this? Why?       Ok now watch the video and answer the following questions   2. Summarize the findings and the claims made in the video. Do they correspond with your answer to number 1?  3. Does this change what it means to be “human” to you? Explain your answer.  Video link https://www.youtube.com/watch?v=jdYwMLSNHnU&feature=emb_title