The variation suggests that astronomers might need to refine their theories of stellar evolution.

BBC: Team records 'music' from stars

Board member Kathy Martin says they're merely intended to allow teachers to discusss alternate theories to evolution without fear of repercussion.

NPR: Kansas Moves Closer to Intelligent Design Curriculum

Using informed but clear language, she guides the reader through Darwin's own encounters with giant tortoises, iguanas and finches on these islands in the 1830s that led him, years later, to formulate his theories about the origin and evolution of species.

ECONOMIST: Island life

But Prof Reiss argues that there is an educational value in comparing creationist ideas with scientific theories like Darwin's theory of evolution because they demonstrate how science, unlike religious beliefs, can be tested.

BBC: NEWS | UK | Education | Teachers 'fear evolution lessons'

Ever since the Dover Trial, when ID was judged to be another form of creationism, its chief proponents have concentrated on trying to insinuate books and resources that are critical of evolution into the classroom, without openly offering creationist theories as alternatives.

FORBES: Creeping Creationism in Louisiana Public Schools?