>>71422225215% are deaf in one ear, 5% are deaf in both. It's not a big deal. When it comes to bad dog genes I thought you were talking about increased cancer chance or the necessity of doing a super expensive surgery to put the hip back in place which is what most big dogs have to go through at some point. Dalmatians are healthy compared to that.
Want to know something fucked up? 85% of white cats with blue eyes are deaf, 40% of white cats with at least one blue eye are deaf