This scientific article from the Creation Research Society Quarterly discusses spur and groove morphology, a characteristic feature of coral reefs around the world, particularly well-studied in the Florida Keys. The author highlights that this structure, composed of coralline ridges (spurs) separated by channels (grooves), appears to be a designed and optimal form for healthy, Elkhorn coral-dominated reefs. The piece questions the long timescales typically attributed to coral reef development by pointing out a disparity between observed coral growth rates and the purported age of the Florida Keys reef tract.