Before revision: Walter R. Tschinkel, a biologist at Florida State University, who also researched the fairy circles, remarked that Juergens , "has made the common scientific error of confusing correlation (even very strong correlation) with causation".
After revision: Walter R. Tschinkel a biologist at Florida State University, who also researched the fairy circles, remarked that Juergens , "has made the common scientific error of confusing correlation (even very strong correlation) with causation".