OK, I have milkweed plants. The first one showed up 2 years ago, so this is the 3rd year I have had them, and they are multiplying. I am going to move them, but right now they are in my front flower bed. I know that monarchs need this plant to survive, so I chose to leave them. Their flowers are the most aromatic of any plant I have ever had, rivaling lilacs even. Anyhow, I spotted 3 different teeny tiny (1/4" long) monarch caterpillars 2 nights ago, and people asked if I was going to "rear them inside". Nope, let nature do it's thing, I said. Next night, last night, I went looking for them, found none. So, tonight, encouraged to look often, I found 7 of them! I think these are all brand new babies, as they are as tiny as the ones two nights ago. I cut off the leaves they were each on, and put the ends of the leaf stem in water in a cup covered with sarah wrap to keep the babies out of the water. Here's one of the 7 babies I "saved" tonight. To give you an idea of size, here he is with the tip of an ink pen next to him. And, this is the 10 gallon aquarium that I have them in. I have paper towel on the top, before the screen lid, so they can't escape and die. It will be easy to rear them, or so I have been told. They eat milkweed - I have plenty of plants in various stages of maturity. They grown for 2 weeks until they change to the chrysalis. Once in this chrysalis stage, they will remain there for 2 weeks then emerge as a full grown monarch butterfly! I will add twigs to the inside for the caterpillars to climb on and then form their chrysalis on the branches or the top screen. I plan to post pics often of their progress. I hope I do a good job, and they all live!