Image: Jennifer Howeth
10. Coahuila Box Turtle
These turtles are called box turtles because the front and back sides of their shell close up just like a box. Most species live on land, but this one is permanently in fresh water in the springs and marshes of Cuatro Cienegas in northern Mexico, a desert oasis that is under threat thanks to continued pumping of water for agricultural as well as residential use. In addition, much of the land is being converted to agricultural use.