Sporting a bright red-and-yellow dewlap under its chin, the color-changing Bahamian anole lizard is a popular exotic pet. This wily anole has escaped captivity on enough occasions to successfully invade large areas across the Western Hemisphere. At first glance, this suggests that the anole is well-suited to adapt to a changing climate. But a new study led by a Smithsonian researcher, suggests that may not be the case.