LOL! It’s the motion. How old is she? Looks young in the photo, but that may just be her enthusiasm. ;-)
I’m not positive how old he is - I adopted him from the shelter last year. Considering he’s filled out a bit (not fat, but broader in the chest and such) since I got him, I imagine he wasn’t more than a year or so old. Still pretty young.
Although I bet he was an adorable puppy, in some ways I’m glad I missed that stage. He must have been a holy terror!