I'm sure others have seen this as it's been all over the internet, but I just saw it and can't find a thread on it. It's totally cool, but at the same time kinda freaks me out! Watch the video though, very interesting!
http://www.sciencealert.com/watch-a-chick-develop-and-hatch-outside-of-the-egg
http://www.sciencealert.com/watch-a-chick-develop-and-hatch-outside-of-the-egg