It is small for a fox, weighing only 3 to 4 kilograms (6.6 to 8.8 lb), with a head and body length of 58 to 72 centimetres (23 to 28 in), and a tail 25 to 36 centimetres (9.8 to 14.2 in). Together with its slender form, the small size of the hoary fox makes it an agile and fast-running animal, while its relatively weak teeth adapt it to feeding on invertebrates, rather than larger prey.[4]