"What If All the Cats in the World Suddenly Died?" Yahoo News asked today. Intrigued by this mysterious world without cats (What would we put bread on?) I clicked the link and found myself at Life's Little Mysteries, a LiveScience sister site dedicated to answering search-engine optimized questions of childlike wonderment like "Why are there holes in 'Swiss' cheese?" and "Who Will Succeed Kim Jong-Il?" (Trick question. Can't be answered.)