What is the driest animal on Earth?

The driest animal on Earth is the desert kangaroo rat. It is found in the Sonoran Desert in Arizona and Mexico, where it lives in burrows. The kangaroo rat can survive for years without drinking water, getting all the moisture it needs from the seeds and plants it eats. It extracts the water from the food by pressing it against the roof of its mouth with its tongue. The desert kangaroo rat has two different kidneys that process the urine; one kidney makes concentrated urine, while the other kidney reabsorbs the liquid, producing even more concentrated urine.