I Believe In Aliens

A Thought Occurs....... The better portion of all alien sightings describe a short, frail being with a large head, large black eyes, a small mouth and pasty gray skin. While this doesn't tell us much about who they are or where they're from, it does at least tell us what they are...They're a race a nerds!
Over time they developed large heads to accomodate the increased brain size.
The large black eyes evolved to take in as much light as they could from being inside during daylight hours...the same reason their skin became a permanent pasty gray.
The small mouth developed due to a lack of verbal social interaction as most nerds almost exclusively interact socialy online.
They're short and frail because, well let's just face it, how many tall and muscle bound nerds have you ever met?
As for why they would come here...it seems to me that most nerds seem to think the place to pick up chicks is always someplace far from home.

So there ya go...if you're ever abducted by one, don't fear them. Instead, realize they represent the future evolution of the human race if we don't start logging off and going for a walk every now and then ;-)