ATLANTA (AP) -- A federal judge Thursday ordered a suburban Atlanta school system to remove stickers from its high school biology textbooks that call evolution ``a theory, not a fact,'' saying the disclaimers are an unconstitutional endorsement of religion. ``By denigrating evolution, the school board appears to be endorsing the well-known prevailing alternative theory, creationism or variations thereof, even though the sticker does not specifically reference any alternative theories,'' U.S. District Judge Clarence Cooper said. The stickers were put inside the books' front covers by public school officials in Cobb County in 2002. They read: ``This textbook contains material on...