The nodes of the wheat were analyzed and found to show unnatural elongation, Wilson said. Furthermore, the stems of the wheat showed evidence of "expulsion cavities" usually not created by natural means but reproducible through the application of heat such as might be produced by microwaves.Link (via the Anomalist). Of course, by "not man-made," Wilson really means "not just made with wire and wooden planks" a la the Bower and Chorley hoaxes. It still could have been hoaxers armed with lots and lots of these.
The area within the circle also showed higher-than-average levels of radiation and electromagnetic activity. These characteristics have been noted in other plants where crop circles have been found, he added.
Indexed by tags bizarre, crop circles, Tennessee.