In the immortal words of Salt ‘N Pepa, “Let’s talk about sex…” In this episode of Mental Floss’ weekly trivia show, host John Green plays peeping Tom on animals doing the deed, and we find out that the real problem with panda survival is a sad lack of hollow trees. Huh? Check it out (unless …

Mental Floss hosted by John Green, where knowledge junkies get their fix of trivia-tastic information. This week, John sorts through a number of acronyms and initialisms such as M&M’s, SCUBA, and the USA PATRIOT act. An acronym is an abbreviation formed from the initial components in a phrase or a word. These components may be individual letters (as in CEO) …