>>>>They do have a specific dietery requirement and are thus difficult to satisfy if the right food is not obtained. They are desert dwelling snakes that burrow into the loose desert sand and flick their tail to attract other reptiles etc, normally small lizards and geckos.
Actually, they can thrive on a diet of frozen/thawed lab mice. They don't absolutely need to eat lizards to survive in captivity. It's the babies that are a b!tch to feed!