If your dog is over heating or cooking on you while you're hunting, I have something that I do that might save its life. Take your knife and cut a 1/2" slit near the tip of the ear. It'll bleed some but that is what you want it to do.......it's releasing the pressure off the brain and head. Have you ever noticed your dogs ears being cut by briars while they're hunting? This is Mother Nature's way of taking care of your dogs!
Sorry mate absolute wives tail that one. Think about it....How does one injury help another one?
Used to be another one here that feeding dogs kangaroo meat taught the dogs to chase them...another wives tail