Ok, I just saw this video of a two legged dog and I have some SEVERE engineering questions. One major one is about how the T-Rex needed this long tail to balance to run on 2 legs, think of how they had to change all the skeletons and models recently. How can this dog move in the same exact manner that they used to think the T-Rex did without the tail mass? Also they said that the vets said that her hips are fine, but isn't this mode of locomotion putting 2 times the stress on the bone and tissue, as well as introducing stress in places the "system" wasn't designed to handle.
I'll admit that I'm amazed either way.