The earth is full with interesting, entertaining, and fascinating facts, with around 200 countries and more than 7.8 billion people (including plants, animals, and other things). For example, the largest percentage of pet owners on the planet can be found in the homeland of the Kiwis. One of only two flags in the world that uses the color purple is that of Nicaragua. Interested in learning more information about the world's expanding population? Continue reading to discover some fascinating facts about the past, present, and future of the Earth.