This is a very cool - and short - video. And very simple premise too. It basically shows a German Shepherd puppy, named Dunder, growing in a set of still images from an 8 week old puppy to a 1 year old German Shepherd. Cure - all in under one minute. Check it out for yourself.
Here is what the video maker, and Dunder's owner, had to say: "A photo a day of Dunder the German shepherd. 8 weeks old to 1 year in 40 seconds. It really does feel like he grew up this fast. "
And underneath you can watch the whole process in reverse if you want to from adult back to puppy.