Their underside is white, white their bushy tail and outside of their ears are reddish brown. Their light color also absorbs less heat to help the Fennec fox stay cool. The fur is fine and thick with longer guard hairs covering a dense wooly undercoat. Heavy fur is unusual for desert dwelling animals, but it insulates the Fennec fox from the cold nights as well as the daytime heat. Its feet are thickly furred to insulate its pads from the hot desert sand and to cushion its step, which makes its movements quiet and difficult to detect while hunting.
Fennec foxes are able to survive a long time without water.
Extremely agile, they can jump two feet straight up from a standing position and make horizontal leaps of up to four feet. They're furry, cuddly and fun. You can tell them apart because Mulder is a little heavier and darker. He crawled into my sweatshirt pocket and went to sleep. Those two make an impossible game of catching them.