Hey all. Here's a stupid question for any iguana anatomy experts (Which I'm definitely not). When Zilla opens his mouth , I notice that he has what appears to be a second tongue located caudally to his primary? tongue. And between or within these tongues there seems to be a hole. What purpose is that hole for? Is what I'm seeing normal on iguanas or is this some mutation? Can anyone explain to me me the purpose of these tongues if they are normal. Thanks.