In the usual strange way, a random conversation cropped up at work this week about being left-handed. I recalled that I had recently read something about left-handed people having a shorter average life expectancy than those who are right-handed. This is the sort of story that usually appears on the BBC News site, so I typed in my search for "left handed" to try and find the story. I had no luck, but I was fascinated to see a large number of wonderful nuggets of knowledge instead! Did you know that left-handedness was common in the Ice Age? Or that most walruses are right-flippered? Or even that couples turn their heads to the right as they kiss? All good little gems to be recalled at the pub as necessary.