New pornographic figurines from the Stone Age have been discovered in Germany. But researchers can't agree on what the 7,000-year-old sculptures mean. Were our ancestors uninhibited sex fiends, or was reproduction strictly controlled to improve mobility? An increasing number of finds seem to indicate the Stone Age was an orgy of sexual imagination. The project itself was far from extraordinary. Workers near the Eastern German city of Leipzig were digging a ditch for a new gas line. Hum drum. But what they discovered was far from routine. A backhoe unearthed a 7,200-year-old, Stone Age garbage pit -- and it was...