I haven't posted a video of Damien on his crawling track since, oh, he was less than a week old.
He has made a lot of progress since those first reflexive movements.
Since about, oh, five or six weeks old has been really getting the hang of this mobility thing and digging his little feet into the floor intentionally and really getting places.
Another milestone? Less fussing. Which is great. He really seems to be enjoying his mobility.
Damien is 1 month, 2 weeks old (7 weeks)