What will DNA tell us about Bigfoot?
If and when a Bigfoot specimen is taken, it is expected that the DNA results will help place the Bigfoot somewhere in the ape-human family tree. Don't be so sure.
DNA is not the be-all, end-all 'blueprint' when it comes to defining differences and similarities between species like the great apes and humans, or for that matter, any species. There is also morphology to consider. (Wiki describes Morphology as a branch of biology dealing with the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance (shape, structure, color, pattern), i.e., external morphology as well as the form and structure of the internal parts like bones and organs, i.e., internal morphology or anatomy.)
Yet, as small the percentage is, why aren't chimps and humans almost identical in a morphological sense? (i.e. why don' t they look more alike?) * Did you know that human males differ from human females in their DNA by about 1.5%. A major reason is that the male Y chromosome is much smaller female X chromosome. If you took only the percentage differences, wouldn't you conclude that human males are more closely related to chimps than human females? The difference, of course, is that human males and females are much more similar to each other morphologically. Some of these are derived features of the Homo sapiens species. (In the study of evolutionary relationships, derived refers to traits that exist in a present organism, but did not exist in the organism's ancestors.)*