Teddy and the cats ride in carriers. Denyce, I hate it when I see dogs in the back of trucks too. My dogs are so big that I don't have a choice though. I have them fashioned pretty safely in there though. There's a chain that runs across the back of the truck. They are chained to the middle so that they cannot jump out and/or hang themselves. Another danger that people don't realize is Cornea damage. Dogs who hang their heads over the side or out the windows get hit in the eyes by bugs and particles. Over time, their corneas get damaged.