Around 39% of humans have an extra small bone behind their knee called a fabella. German chocolate cake isn't from Germany -- it's named after American chocolatier Samuel German, who developed the recipe. The Greek philosopher Diogenes the Cynic was the original Oscar the Grouch: he chose to be homeless and slept in a large ceramic jar near the marketplace. Nearly one tenth of all men alive today in central Asia are descended from Mongolian Emperor Genghis Khan, who clearly got around. A jockey named Frank Hayes once won a horse race, despite having suffered a fatal heart attack halfway through. His body maintained the proper position as his horse crossed the finish line first. When animals sleep through a cold period it's called hibernation, but when animals sleep through a hot period it's called estivation.