Add Yahoo as a preferred source to see more of our stories on Google. In this segment for Backstory, Larry Potash digs into his own family tree and ancestral DNA. What did he learn? Vanessa Trump, 48, ...

Potash Corp. of Saskatchewan Inc., the target of a hostile $38.6 billion bid from BHP Billiton, is exploring alliances with an array of global companies—from petrochemical and agri-business ...