Crop Circles

In the past several decades crop circles have appeared in different fields across the world.
Where did they come from? Who put them there? What do they mean?

Some people say that they were created by ancient aliens to send messages to us or even back to where they came from.  Others say that the crop circles are proof that aliens do exist and the intricacy of them is proof of their intelligence. Still others say they are complete hoaxes by kids just having fun.

What do you think? Let me know in a blog comment.
~Linda Cadose