New DNA research collected by Professor Bryan Sykes, a leading British geneticist, reveals a unique genetic link the may answer the centuries-old mystery what is Bigfoot? The results are featured in a new two-hour special. Sykes sets off on a global quest to unlock the real story of Bigfoot. Sykes, professor of human genetics at the University of Oxford, collected and tested Yeti hair samples in the western Himalayas to find out what species they came from. (Source: National Geographic Channel)