Last year my sister found two monarch caterpillars on some milkweed vine growing on her fence. She called me and I immediately went over there and got them. I took them to school to share them with everyone. Anyway, I took pictures of them at different stages. I was looking at a website at some pictures of monarchs, and emailed them and asked them if they would like my pictures as well. They emailed me back and said they would love to have them. It took me forever to find them, but here they are.
http://www.kidzone.ws/animals/butterfly ... story.html