It only took almost 12 months, but she has finally learned to crawl. She did not, however, roll over. She just learned to do that a few weeks ago. I've never heard of a baby who was a year old that couldn't roll over. I could place her on her back and she would be like a turtle, completely helpless. This came in handy when at the beach in California. I just put her on her back so she would stay out of the sand. Worked great.
Here is Elisa trying to get Izzy to crawl to a toy she just pushed farther away. Obviously, my well tempered baby girl did not like it one bit!