Dr. Jeff Lovich holding a native and non-native turtle in each hand near Montezuma Well, AZ

Dr. Jeff Lovich holding a native and non-native turtle in each hand near Montezuma Well, AZ, April 2008. The small turtle is a native Sonora mud turtle (Kinosternon sonoriense) and the larger turtle is a non-native Red-eared slider (Trachemys scripta elegans). The red-eared sliders have been removed from Montezuma Well. Montezuma Well is managed by the National Park Service.