MaryAnne and Dallin kept a couple the tent caterpillars and they actually spun cocoons. I had my doubts that they would actually hatch out and become moths. One a Sunday afternoon the kids saw that there was a moth in the jar. We actually saw the second moth climb out of its cocoon. We walked the moths back up to the Institute building where the kids caught the caterpillars and let them go. I took pictures of Dallin and MaryAnne with their moths in a jar, but I sure can't find them on the computer any where. I'll post them later if I ever find them.