Fennecs den, burrowing under rock piles and the roots of brush. The burrow usually has several entrances. The burrow serves as shelter from weather and enemies. A number of foxes may live together in what becomes an extensive tunnel system. Recent studies with red foxes gives a hint about this behavior.
Males actually have a small harem of several related females and their juvenile pups.
These desert foxes are nocturnal, spending the heat of the day in the cool recesses of the burrow. They exit after nightfall to hunt. They also cache food for future use and seem to remember every cache site. Typical of all foxes, fennecs are very agile. They can jump straight up as much as 2 feet and can make a horizontal leap of 4 feet from a standing position, remarkable for its small size.