Actually they are designed physiologically to CONSERVE moisture, not to lose it or be without it. In a hot dry cage with no place to go that is cool and moist, snakes and other reptiles will dehydrate and suffer for it down the road if not right away. When these snakes bromate, they are not doing it in dry conditions like they get in captivity. Nothing you do in captivity really mimics what they do in the wild so why would you even want to come close to mimicking the worst conditions they can possibly go through? Makes no sense.