This was passed around the internet a little while ago, but every time I see it, it makes me happy. 
[Image: spidersmile.jpg]
It's an adult female jumping spider, and it was photoshopped to make it look like it's smiling.  It's originally from here, but the photoshopped version is from here.  I prefer to think dangerous bugs and animals have personalities and are merely misunderstood. #nature