Do Dogs Smile?

IMG_6838I know there’s some debate about whether what humans might perceive as a smile is truly a canine expression of happiness and satisfaction — as opposed to, say, simply panting to cool off on a warm late summer day.  It’s hard for me to believe, however, that anyone who sees Kasey outside in her favorite spot, with an apparent ear-to-ear grin, could argue about whether dogs actually smile.