Leaps and Bounds

Yes, it's the title of a wonderful Paul Kelly song.
But it's also what Ari's been doing this week - going ahead in leaps and bounds.
He stagnated there for a bit, but in the space of about three days he started:
1. Saying mama, nana and baba
2. Bum jumping - strange, but funny to watch
3. pulling himself up onto things
4. sort-of crawling a few steps;
5. pushing himself from lying down to sitting up. Even in the bath; and
6. sitting up on his knees.