Alien invasion

Playing around with Picnik (a "free" photo editing software that pulled me in quickly to get the $25/year premier version). I was amused by this picture thinking that these mushrooms really DO look like aliens. Or what I imagine aliens might look like; I'm not sure I've ever seen one.

Humor is not one of my strong points, and every time I read a funny blog I think I'll try it out again. Sorry to say, all my readers are going to be subjected to this every once in a while. I do believe there are aliens out there, a product of my many years of reading science fiction.

What do you think? Are there such things as aliens? And how would we know them anyway, since they would be, um, alien?
:-)