The South American gray fox (Lycalopex griseus) is a small canid native to the grasslands and forests of South America. It has a slender body, a bushy tail, and a coat that is mostly gray with reddish-brown patches. This fox typically weighs between 5 to 10 kilograms and has a length of about 60 to 90 centimeters, including its tail. These foxes are omnivorous, feeding on a diet that includes small mammals, birds, fruits, and insects. They are primarily nocturnal and are known for their adaptability to various habitats, including urban areas. The South American gray fox plays a crucial role in its ecosystem by helping control rodent populations.