I agree I am not a dna expert but I do know that simply running the sample to obtain dna results tells you nothing unless you have a known result to compare it to. They take the result of the test and compare it to results of other known species and show it is none of them but unless they have known bigfoot dna results in the database they cannot say it is a bigfoot because they will never get a match to anything. There are samples of every know species in the database already to compare the results to and since bigfoot is not a known species their results will not be in the database. Common sense and watching Bones will tell you that. If the results do not match anything on record then the results are inconclusive.