"""My name is Celina Marshall and I teach first grade at Hawthorne Elementary in Ontario, California. Our school was invaded by many black spiky caterpillars, with a red stripe down their back. My class (along with many others) played host to these caterpillars and watched them form their chrysalis. At about the 15th day a very dark red butterfly emerged. My class released the butterfly into the urban wild on April 2nd. ""A third grade teacher, whose class was also hosting some of the same type of caterpillars, did a little research. She found these to be the Mourning-Cloak butterflies."" - Celina Marshall Observation and photo by Celina Marshall, sent to nature@nhm.org."