King, a GSD couldn't, or never did. He wasn't even much of a jumper, except to pounce up for affection. He looked so awkward when i finally taught him sit pretty. He couldn't do it with out a bit of support though. I don't think he could have done a back flip even if he tried.

Miss Koli Husky though has done it twice while in foster care. Once long time ago when chasing a bumble bee. (I forgot about that until i ran across the post about it two nights ago. Then she did it again a few days ago, but i forget what she was doing.