The Sonoyta mud turtle has evolved as an aquatic species in one of the driest parts of the Sonoran Desert. With webbed feet and an innate ability to swim, this turtle depends heavily on what little ...

DESCRIPTION: The Sonoyta mud turtle is a dark, medium-sized turtle with a shell up to seven inches long. The upper shell is olive to dark brown; the lower shell is hinged, front and back, and varies ...