David Feldman 
Imponderables 

Why does an "X" stand for a kiss?Which fruits are in Juicy Fruit gum?Why do people cry at happy endings?Why do you never see baby pigeons?Pop-culture guru David Feldman demystifies these topics and so much more in Why Don’t Cats Like to Swim? — the unchallenged source of answers to civilization’s most perplexing questions. Part of the Imponderables series, Feldman’s book arms readers with information about everyday life — from science, history, and politics to sports, television, and radio — that encyclopedias, dictionaries, and almanacs just don’t have. Where else will you learn what makes women open their mouths when applying mascara?