Our layer of fine hairs aids parasite detection: study
                                
                                
                                    (Newser) -
                                    Scientists who wondered why human skin still boasts as many follicles as that of great apes—ours, of course, grow hair much, much finer—believe our species' continued hairiness serves as an alarm system that protects us from bedbugs and other biting insects, the  Economist  finds. The researchers, who shaved...