Red river hog—a pig of a different color: The red river hog is found in Africa. It is named for its reddish-brown fur and the fact that it often wades through water. (Red river hogs don't live in a red river!) These pigs are active both day and night and are good swimmers. It's interesting to note that while many pigs are becoming scarce as a result of people moving into their habitat, these changes actually help red river hogs; as farming spreads, the farms provide good grazing for the hogs and lessen the leopard population.