Most turtles are aquatic or semi-aquatic, while tortoises live on land. Tortoises, however, are often good swimmers. Turtles are among the most endangered vertebrates. Habitat destruction, illegal ...

TUCSON, Ariz.— The U.S. Fish and Wildlife Service announced final critical habitat protection today for the endangered Sonoyta mud turtle. These highly aquatic turtles are found only in Pima County, ...

In Mexico, these turtles inhabit a couple of small, still-flowing sections of the Rio Sonoyta. Quitobaquito Springs and the Rio Sonoyta, like many aquatic habitats in the Southwest, are threatened ...