[Lovetodream88]

Originally Posted by woofwoofwoof

Thank you, that's quite interesting. It's definitely heat related and I got to test that theory the other day when it was cool and cloudy. We went for our hike and he didn't pant once, made it all the way to the top as he always did. My concern is that, he pants when it's not really that hot outside, but the sun is out. For example, just a walk around the block on a sunny breezy 69 degree day. That brings me to what you said about not getting enough oxygen. Could there be something stuck in his throat or something wrong with his lungs? I mean if he can do it in cool weather, I would think his lungs are fine. However, sometimes when we play fetch and he's running a lot back and forth I will hear a slight wheeze in his breathing.

69 is warm to dogs so it would be normal to pant. The panting is absolutely normal. If he was not getting enough oxygen his gums and tongue would be turning a blueish color.