Some Folks Don't Have It
Did you know that it has been proven that some individuals do not have a voice inside their head? Right now there is no official medical term to explain what this phenomenon should be called, but we like to call it "non-monologous." These individuals aren't sick or even much different from those who do have internal monologues, they just tend to think in broad concepts and visual stimuli.
Tons of Termites
There is a termite colony that spans thousands of miles. It's literally the size of Great Britain, and it spans a multitude of different elevations. This colony is roughly 4,000 years old, and it's host to literally hundreds of millions of termite mounds.