Arachnophobia may boost people's size estimates
                                
                                
                                    (Newser) -
                                    When Noga Cohen, a grad student at Israel's Ben-Gurion University, spotted a spider one day, arachnophobe and fellow student Tali Leibovich freaked out about its size. Cohen thought that odd, because the eight-legged arachnid looked tiny to her, reports  Live Science . And so a study was born. They set...