From both the article and the textbook, some of the unique qualities of humans are its bipedalism, large brain, complex language, and the ability to forge tools. Of all the traits listed above, bipedalism is one of the most vital. Not only was it essential for the survival and expansion of our species, but according to Darwin it is considered a key force for human evolution. (Ironically enough, one of the major health problems that people face today is living a sedentary life style.)
Before we discuss about contingency in evolution, we need to understand what contingency is and controversy involved with this idea. In a general context, contingency is ‘a future event or circumstance that is possible but cannot be predicted with certainty’.
Before we discuss about contingency in evolution, we need to understand what contingency is and controversy involved with this idea. In a general context, contingency is ‘a future event or circumstance that is possible but cannot be predicted with certainty’.