They are quick and agile.

I went to start a bath this evening for the girls. Before doing that, I stripped them both down and put on a video for Parker (I like him to watch a video when I give them a bath because it helps ensure he doesn't need me during that time). When I was checking the water, Miranda came in. I called and called for Elizabeth who usually runs to the bath but she didn't come. I picked up Miranda, since the tub had water in it by then, and went in the living room to get Elizabeth. This is what I found. (And yes, I grabbed the camera before getting her down...while I was holding Miranda.)