How does the elephant adapt to the deserts?

Elephants need massive quantities of food, perhaps 136-159 kg (300-350 lb) a day, although proportional to their body-weight elephants eat less than mice. The diet of elephants includes roots, bark, grass, leaves, berries, seedpods, and other fruits. In the savanna they are very lucky, as grass is an "indestructible" plant which can survive even the toughest conditions and grow very quickly, meaning there is always a food supply available. They have large ears to help them fan down and a trunk to help them store water to cool themselves either when really hot or whilst having their "bath" Debo =D