Image with a thumbnail that's different

I just found this picture from the net. Check it out !!

Here is an image which seems to be normal. An ordinary JPG file.

But click the image to open up fully and save the image.

Check out the thumbnail image- cool huh ? (Works in Windows XP, tell me if it works in others too)

To see thumbnails, go to the folder where u saved the file (using My Computer) and then click View - Thumbnails