Since the British Empire's dispersal of English to different parts of the world, the language has taken on many forms. With all of these existing varieties, what's in store for this global language?
As of Earth Day 2015, NASA has discovered more than 1,800 planets outside of our solar system. Do you know what makes Earth different from so many other planets?
Studies show the African continent contains the highest genetic diversity of any place in the world, but whether or not that correlates to the highest variation in language isn't as clear.