Mud turtles are an omnivorous species and eat such things as snails, aquatic invertebrates, carrion, tadpoles and vegetation in their habitat, according to the Arizona Game and Fish Department. Since they spend much of their time in the water, they are able to feed from many types of plant matter.
Though they prefer the water, mud turtles are considered to be semi-aquatic, according to the Arizona Game and Fish Department. They will often travel great distances to find the nearest water area, and can be found in both fresh and brackish waterways.
Mud turtles love to snack on items such as tadpoles, frogs and even toads, if they can get them. Since they are adept at blending into their surroundings and use the cover of the mud to hide, they can often grab a treat without expending too much effort. They simply let their lunch come to them, and then strike at the opportune moment. Using their hard beaks like mouths, they can easily crush what they are attacking.