From you tube view the 13 parts of the journey of man, a genetic odyssey by: spencer wells - Essay Example

Download file to see previous pages In addition, he explains the complexity of the DNA in simple terms as strands of chemical substances A, C, T and G. The aim is to indicate how the DNA writes the history of man. Wells explains the ideology of the family tree based on the male Y-chromosome.
In part 3 of the documentary, Wells engages in a hunting activity with the isolated tribe, the San. Here he discovers that our ancestors developed a language to communicate. In a preview, the documentary states the importance of language in organization through the exchange of ideas. Language is therefore a survival tactic for the humans. The fourth part focuses on the climatic changes that may have caused the ancestors to move away. According to Wells, about 70000 years ago, there was an ice age characterized by low sea levels and draught. The ancestors moved from Africa to Australia in an unexplained way. Wells tries to analyze the traditional music of the Aborigines of Australia to find a clue of the journey but fails.
In part 5, Spencer experiences the conflict between tradition and cutting edge science. Human traffic is one way from Africa to Australia; thus the question: which route did they use? Assuming a route through India, Spencer moves to India to trace the original genetic marker. In the next part, the documentary still focuses on finding a genetic marker that leads back to Australia. Spencer discovers the genetic marker occurring around 2000 years ago proving that our ancestors passed through India from Africa. This reveals evidence of coastal migration; though there is an open sea to Australia.
The ancestors of man arrived in Australia 50000 years ago. This part then shifts focus to the second wave of migrates who took a different route. This wave went to East Asia and separated. In Europe, Spencer analyses the caves settled in by the Cro-Magnon man. Part 8 gives a detailed description of the different climates between Europe ...Download file to see next pagesRead More