Crop circles be damned. When they *really* want to communicate, they construct a 1,200-foot pentagram:
http://www.nbcnews.com/science/huge-mysterious-pentagram-kazakhstan-explained-6C10843939
Crop circles be damned. When they *really* want to communicate, they construct a 1,200-foot pentagram:
http://www.nbcnews.com/science/huge-mysterious-pentagram-kazakhstan-explained-6C10843939