Why Does Your Dog Stick His Head Out the Window on Rides?
Why do dogs leap at the opportunity to stick their heads out of car windows while riding? Discover magazine runs through several possible motives. The first is that dogs’ sense of smell is so strong that sniffing all of that passing air is a exhilarating sensation to them.
… Or, dogs may simply enjoy the passing sights, the air blowing on their faces, and the opportunity to contemplate escape.