A German shepherd was out playing in the backyard when he realized something was following him. The dog kept turning round and round to figure out what was going on but he just couldn’t seem to shake what was following him. That’s because, it was his shadow and he’d never noticed it before this moment.

But then the dog seemed to realize that the shadow was mirroring his every movement and clinging to him in a way that he had never experienced before. The dog didn’t know how to react. He started testing his shadow to see what would happen if he moved about.

Watch the video showing what this dog does when he discovers his shadow.

https://www.youtube.com/watch?v=iUd_mBVaSAU

It’s a pretty hilarious and sweet realization this dog has.