Flutes may have helped early humans endure bitter cold
                                
                                
                                    (Newser) -
                                    Researchers have identified two flutes made from mammoth ivory and bird bone as the world's oldest musical instruments, the  BBC  reports. Discovered in a cave in southern Germany, the flutes were likely fashioned 42,000 to 43,000 years ago, when early humans used them for religious ritual or...