Cats are not of this earth. You know this, I know this, most thinking individuals realize it, as well.
Usually felines present a reasonable facsimile of an earth life form (although if examined closely, reality dissolves the facade, cracks form, the whole thing goes to hell in a hand basket and their alien origin is exposed), but their true nature is often revealed once they slip into slumber.
Here, Momma reverts to her more natural, twisted form. In this pose, she can move both forward and backward, up and down, side to side, etc. She can perambulate on all fours, front two, back two, or any combination she desires. She is limited only by her imagination and -- thankfully, the one built-in limitation that cats are subject to -- the need for up to twenty hours of sleep a day. ~~GH