Which adaptation would be most helpful to animals in a desert?

Desert animals must cope with two things; temperature extremes and lack of water.

Explanation:

Therefore, most adaptations in desert animals, while they may seem bizarre, serve the purpose of helping that animal cope with these two problems. Both are important. Water is necessary for life, and balancing the water budget is essential for desert animals.

Being able to store water.

Explanation:

Many animals in the desert have different adaptations, like the camel having two humps to store fat, or a fox having big ears to disperse body heat. But what most Desert animals have is the ability to prolong water intake, and being able to go long ways without water.