One adaptation Lizards use is estivation, which is a period of inactivity. During this time, they can survive with little water or food. During this time, they conceal themselves underground.
One adaptation that helps rattlesnakes survive is that it's eyes can detect movement from up to 40 feet away. This is helpful for night hunting, which is good for the desert since it's cooler at night.
Coyotes adapt their hunting style based on the habitat they are in. They hunt differently when they are hunting small prey versus larger prey. They also like to hunt at night when it is cooler.