I cut out the photos and put them in bowls (1 for each of the girls) and they had to sort through them and decide which living thing the picture belonged to. The only thing that confused them was the frog, butterfly, and beetle eggs and the apple and pumpkin seedlings.
For the final page of their books, the girls had to draw pictures for their own life cycle. At the top is me, very pregnant. Next comes baby Primus. Next is grown-up Primus. Finally is adult Primus. Note that she is wearing a wedding dress and holding a bouquet of flowers. It's very hard to see, but she also tried to draw a wedding ring on the far left side.