Photographs: © Marian Bacon/Photolibrary.com (panther chameleon); Martin Harvey/Peter Arnold, Inc. (Parson’s chameleon); © Jack Milchanowski/Age Fotostock (three horn chameleon); © Marian Bacon/Animals Animals – Earth Scenes (panther chameleon); © Marian Bacon/Photolibrary.com (panther chameleon); © Daniel Heuclin/NHPA (Parson’s chameleon); Mike Severns/Getty Images (Jackson’s chameleon); © Andy Rouse/Jupiter Images (green chameleon); Robert Sisson (cactus chameleon); © Sebastian Duda/Shutterstock (chameleon on flower)