Home > Interesting Facts > The Science of Kissing The Science of Kissing Interesting Facts Puzzle and Acitvity Books Share on Pinterest There must be a good reason why we kiss. From motherly comforts to testing the genetic compatibility of your “mate” . . . the science of kissing is pretty awesome… Share on Pinterest Activity Books for Preschoolers - for homeschooling or kindergarden classes Related Posts Best 5 Educational Toys for Ages 6 And Up The Nature Of Nothing The Ten Biggest Vehicles Of All Time How Hot Can It Get? Why Do We Laugh?