I recently noticed that when my 7-month old Boxer, Apollo, is drinking water or steadily sniffing something intently, he has one rib on his left side that seems to be seperated from all the rest. My chin dropped the first time I saw his rib do that. I went over to check on him to see if he had injured himself. I applied some pressure to his rib cage and looked him over thoroughly, I was happy to see that he didn't even flinch. A few other Boxer owners at my local dog park have also shared that their dogs share the same characteristic and that they heard it is called a "floating rib." I wanted to know if this was normal for the Boxer breed? Does anyone else out there have a similar situation they would like to share?