According to Fox News, there is little scientific evidence that Bigfoot actually exists. Despite extensive hunting efforts and eyewitness testimony, the determination of Bigfoot's existence is still inconclusive.
According to The Huffington Post, DNA testing indicates the presence of an unknown ape with Homo sapien traits. These DNA samples have been collected from various Bigfoot sightings. Since there is no Bigfoot DNA to compare the findings, however, the testing remains inconclusive until definitive proof of Bigfoot DNA exists.
Some skeptics believe that the DNA samples have been contaminated. One theory is that Bigfoot is actually a variant of the Gigantopithecus, a primate that stood nine feet tall and went extinct 100,000 years ago. Another theory is that the Gigantopithecus of East Asia reached North America.