WASHINGTON - Americans are divided over whether humans and other living things evolved over time or have existed in their present form since the beginning of time, according to a new poll. People on both sides of that argument think students should hear about various theories, however. Nearly two-thirds of those in a Pew Research Center poll, 64 percent, say they believe "creationism" should be taught alongside "evolution" - a finding likely to spark more controversy about what is taught in the schools. That controversy could be related to the difficulty of measuring public sentiment about teaching evolution, creationism or...