Modern evolutionary theory1 provides a robust explanation for how life on earth evolved over time through the passing on of traits from one generation to the next. It is one of the most studied, tested, and accepted theories in science. Creationist attempts to challenge evolution have been common over the last 100 years, but recent and dangerous challenges have come mainly from the intelligent design2 movement.
Intelligent design is based on the concept of "irreducible complexity"3: an idea that some structures found in nature are too complex to be explained by natural selection and are best explained by some intelligent cause. The focus of the movement is on mandating that intelligent design be taught as an alternative to evolution in the science classroom. To do this, it relies on creating false controversy and misconceptions about science—especially evolution. The movement has been successful at gaining support from many community leaders, including politicians and school board members.
A particularly disturbing element of the intelligent design movement is the attempt to circumvent laws protecting separation of church and state4 by claiming that it is a scientific theory not a religious belief.