Since the 17th century, philosophers have been finding signs of divinity hidden within nature, in the complex and beautiful forms that life assumes. Charles Darwin and his successors dismissed that notion, but in the last 10 years, the old argument has been born again under the rubric of "intelligent design" — an idea that melds theology with molecular biology and statistical theory. Known by the shorthand "ID," the concept drew scant attention from biologists for several years, until it became clear that the design movement was selling books and attracting attention as a more scientifically sophisticated alternative to biblical creationism. Now evolutionary scientists are starting to fight back, debating the ID proponents and writing their own books in response. Read More ›