A week into her seventh month, Ada has graduated to crawling. She used it, of course, to get closer to a trash can of dirty diapers.
I didn't bother editing the video ... so forward the play bar to 4:12. When you've watched the miracle a few times, you can go back to the beginning and watch her playing with the dog crate door, which was fascinating to me until, well, until she started moving around the house on her own.
Afterwards I tried to get her to do it again, but the crawling/dog crate door operating tired her out. So now she is in her crib babbling to her stuffed chicken before falling asleep for afternoon naps.