It is usually a birth defect and there is no cure for it. Some dals can be unilateral, where they only hear from one ear. With patience and understanding an deaf dal can be as wonderful a pet as a hearing dal. Here's a great link to a friends page who has a deaf dal. It is usually a birth defect and there is no cure for it.
Some dals can be unilateral, where they only hear from one ear.
Here's a great link to a friends page who has a deaf dal.