Bryant, Yes, its the black dogs I am talking about. I have also noticed that they have loose, thin skin , but I am not sure that has anything to do with their heat tolerance. I am certain that conditioning plays a large role, but I can't help but think there is something in the phenotype that is playing into this.
Maybe a muscle type? these are long lean dogs, they do not have bunchy muscles like some cur dogs?
![Huh?](http://www.easttexashogdoggers.com/forum/Smileys/default/huh.gif)