How do animals survive in the Sahara desert?

All animals (as well as humans) require three basic things to survive:

Food
Water and
Shelter

With resepct to animals in the desert:

some dig burrows which enable them to keep cool during the day: some of them even plug up the tunnel entrance to help keep out the heat

some dig burrows to enable them to reach the water table under the desert

many creatures do not need to actually drink water, but obtain their moisture needs from the foods or other animals they eat

some have special adaptations, such as the Australian thorny devil, a lizard with sharp spikes which actually channel moisture to its mouth

reptiles are cold-blooded, meaning they actually require the heat to warm them enough so they can move around and feed

many creatures are active at night and in the early morning when it is cooler

some reptiles, amphibians and arthropods remain dormant beneath the ground until the rains come, stimulating their breeding cycle

many desert creatures have pale skin which does not absorb the heat as much

some animals, such as camels, have special protective thick pads, or thick eyelashes that keep out the desert sand