The kit fox (Vulpes macrotis) is a fox species that inhabits arid and semi-arid regions of the southwestern United States and northern and central Mexico. These foxes are the smallest of the four species of Vulpes occurring in North America and are among the smallest of the vulpines worldwide. It has also been called a North American counterpart of the fennec fox due to its large ears. The kit fox is one of the smallest species of the family Canidae found in North America. It has large ears, between 71 and 95 mm (2.8 and 3.7 in), that help the fox dissipate heat and give it exceptional hearing (much like those of the fennec fox). This species exhibits little sexual dimorphism, with the male being slightly larger. The average species weight is between 1.6 and 2.7 kg (3.5 and 6.0 lb). The body length is 455 to 535 mm (17.9 to 21.1 in), with a long tail (about 40% of total length), adding another 260–323 mm (10.2–12.7 in). (Source: Wikipedia.org, CC BY-SA)