look please at the page 1 first picture. notice there is still a black screw in the lid on the top box.
Good point, but you will notice a screw in the bottom box (lid) as well.
I would say that he may have stopped unpacking for a few minutes, in order to take the picture, except that Oreganus clearly states he opened all the boxes first[/]
From Oreganus, page 1.
We continued to open the boxes as fast as we could inorder to get he animals out and warmed up quickly.
And on page 20.
there were three of us here when the snakes were unpacked, the pictures were taken right after everything was unpacked and checked.
If the lids were screwed on as KY states, now and in his post on page 9, then there are at least 2, possibly more that were unopened when the first picture was taken.