Polar bears, sloths, sharks -- these are well-known animals found in our popular culture that most people would admit to having at least a bit of knowledge about. However, there's always more to discover. These are some wildly fascinating, yet little-known facts about a few of our favorite creatures.
They'll carefully review tapes of their own performances, as well as those of their opponents. But these presidential debates don't exist in a vacuum; they're part of a long chain stretching back (at least) to the Kennedy-Nixon debate of 1960. And over the past half century, candidates have landed some real zingers.