Article review of Hammer (2013)

Hammer (2013) is an article from Scientific American and deals with H. sapiens hybridizing with other species of human.  Read the article answer the following questions.  should be at least 2 pages long.

1.  What is the evidence for hybridization discussed here?
2.  What are the different models to describe human-nonhuman hybridization?  Do the models differ for different parts of the world?
3.  What are the author’s thoughts on how hybridization likely occurred?
4.  What were the advantages and/or disadvantages of hybridization for us (H. sapiens) as a species?
5.  State what you learned from this article, and how it impacted the way you think about the origins of H. sapiens.