Prompted by his experience testifying for the plaintiff's side in McLean v Arkansas, the eminent philosopher of biology and NCSE Supporter Michael Ruse assembled But Is It Science?. As the reviewer for the Journal of Church and State wrote, "Ruse has performed a great service." Judiciously selected essays and excerpts present information on the nineteenth-century background, the state of evolutionary theory, the nature and source of the creationist challenge, and the philosophical aftermath of the decision in McLean (consisting of exchanges between Ruse and his fellow philosophers Larry Laudan and Philip L. Quinn).