Ours turned 5 mos. old today. His daddy and mommy as well as grandparents all have their ears up, so his not being up yet is definetely not genetic. He is still teething, and a canine nutrition expert told me not to worry until his teeth are all done with. But, having said that, it is very frustrating to see your handsome boy with his ears still down at 5 months. I have hope they will stand on their own unless his very hyper siblings hurt him when younger. I bought the glue and I am sooo ready to use it. But I am giving nature a little longer to do its thing. Let's keep us all posted as to any progress.!!!!