In one of the most provocative and misunderstood studies of the year, scientists in the U.S. and Switzerland have made an astonishing discovery: All humans alive today are the offspring of a common father and mother – an Adam and Eve – who walked the planet 100,000 to 200,000 years ago, which by evolutionary standards is like yesterday. Moreover, the same is true of nine out of every 10 animal species, meaning that nearly all of Earth’s creatures living today sprang into being recently from some seminal, Big Bang-like event.