Chip Walter is the founder of the popular website AllThingsHuman.net , a former CNN bureau chief, screenwriter, and documentary filmmaker. His articles have appeared in the Boston Globe, the Economist, the Wall Street Journal, Scientific American, Slate, and numerous other publications and websites. He is author of three books, most recently Thumbs, Toes, and Tears, and his writing has been published in eight languages. He lives in Pittsburgh, Pennsylvania, with his wife Cyndy and their four children. Visit his website at www.chipwalter.com .