Most hair samples were from bears, cows, raccoons
                                
                                
                                    (Newser) -
                                    If there are mysterious, hairy humanoids roaming the wilds of North America, they don't seem to be leaving any DNA behind, according to researchers who have carried out the first-ever comprehensive genetic review of hair samples supposedly from Bigfoot, the Sasquatch, or the Yeti. The alleged Bigfoot samples turned...