Throughout the Old Testament, we routinely encounter the mysterious character who goes by the title “The angel of the Lord.” By looking at the numerous appearances of this individual, we can piece together clues as to His identity. The first time the angel...

L-gulonolactone oxidase (GULO), the final enzyme in the biosynthetic pathway of ascorbic acid (vitamin C), is a subject that comes up often in discussions of common ancestry. The functioning GULO gene allows most plants and many animals to produce vitamin C from...