The Quest to Resurrect an Extinct Animal Without Cloning

Before there was the cow, there was the auroch, a sinewy beast that roamed Eurasia by the millions. And over thousands of years, humans bred the creature into the millions of milk-and-steak-machines we have today. The last auroch, however, died in the 17th century. A group of scientists now want to bring back the… » 9/11/14 7:10pm 9/11/14 7:10pm