The end of October 08 I got a Bully mix from my local shelter. Up to now all has been well. Yesterday it got up into the 80's here and I noticed her laying in the sun a lot. I was concerned about sun burn on her muzzle and not much else. After nightfall she went into our 78 degree house and was laying on the couch breathing fast and heavy, like a pant but without her tongue hanging out. She had been running and playing with the neighbor children all evening so I figured she was simply worn out. After about fifteen minuets she was still doing this so I went and checked the temp in the house and saw what it was and turned on the AC. Within minuets she was fine. I know that with English Bull Dogs one has to watch the heat but I am not sure about a Bully mix. I believe she is a mix of Stratfordshire Bull Terrier and Beagle? I have looked and can't seem to find anything about hot weather. If someone can help, or point me in the right direction I will be a happy camper.