Yeti, Bigfoot, Abominable Snowman, Sasquatch and Almasty are just some of the names for mysterious creatures across the globe that have fascinated cryptozoologists and confounded scientists for decades. Are they an ancient hominid, a member of the human family like Neanderthals? Are they giant apes or some other species? Or are they simply hoaxes? A leading British geneticist believes he has the tools to finally answer the riddle. Oxford Professor of Human Genetics Bryan Sykes has assembled substantial physical evidence, which he subjects to the most sophisticated DNA tests available, as he and presenter Mark Evans hope to answer scientifically, once and for all, the mystery of Bigfoot.