After the worst mass shooting in Australia's history, new gun control laws dropped their firearm homicide rate by 42% over the next seven years. See more

Americans own roughly 42 percent of all the world’s privately held firearms while making up less than 5% of the world’s population. See more

20% of the world's population lives in China. See more

If the entire population of earth was reduced to exactly 100 people,50% of the world's currency would be held by 6 people. See more

If the population of China walked past you in a single line, the line would never end because of the rate of reproduction. See more

There are more bacteria in your mouth than the human population of the U.S.A. and Canada combined. See more