My male Dumerils Boa is 7 months old. I got him when he was one month old. I fed him from the beginning small live mice. He eats only live and i won,t feed him frozen anyway. Now he is eating adult mice. If he is not hungry he will reject the mice. But i noticed that he smells the air carefully to make sure it,s a mice before he strikes it. I tried once to feed him a rat but he didn,t even recognize it as food. How can i switch him to rats? I never had this problem with my male Red tailed Boa (BCI), I got him also as he was a month old and fed him at first live mice and switched him to live rats when he was 3 months old and he didn,t even make a differance between mice and rats.