Why can a lizard move over a longer distance on hot sand as compared to a snake in a desert?

A lizard can move over a longer distance on hot sand compared to a snake in a desert due to their differing modes of locomotion. Lizards have limbs that allow them to move more efficiently on sandy terrain, while snakes lack limbs and must rely on lateral undulation or sidewinding, which are less efficient on loose substrates like sand. Additionally, lizards can regulate their body temperature more effectively by moving quickly over hot surfaces, whereas snakes may need to conserve energy and move more slowly to avoid overheating.