The largest of the true foxes, red foxes are also the most widespread, found across the entire northern hemisphere. But secretive Sierra Nevada red foxes — genetically and geographically distinct from ...

Sierra Nevada red fox populations have declined dramatically because of poisoning ... talus slopes and shrub lands. Their diet consists of rodents, small mammals, fruit, birds, insects and carrion.

Among the species most affected is the Sierra Nevada red fox, a critically endangered animal whose small population faces heightened threats from habitat destruction, food scarcity, and ...