Quicksand has a lethal reputation: a surprisingly high percentage of movie villains drown in it, and quite a few heroes have saved a damsel in distress from a silty, sloppy end. But quicksand is much ...

If stumbling into quicksand ranks on your list of worries, don't panic. You won't sink in—at least not all the way. Real quicksand is certainly hard to get out of, but it doesn't suck people under the ...