They tether themselves upside down and shed their skin
After a few days the hard green shell gets thin and clear.
At about one week, the shell breaks and the Monarch emerges.
The wings are small and wrinkled, but the belly is full of liquid that is pumped into the wings. Once the wings are full, they need time to dry because they feel like wet paper. The Monarch cannot fly at this time and is very vulnerable to predators.