And maybe they teach at Harvard

Aliens might be living among us disguised as humans — or in a base inside the moon, according to new Harvard study

These could be disguising themselves as humans to fit in, may have come from Earth’s future or might have descended from intelligent dinosaurs.

Or wait…maybe they live in Hitler's submarine. (That's according to the National Enquirer, although not everybody believes it.)

 (Or you can watch this 1973 TV show on YouTube.)

Or you could just go on about your day…but be careful of anyone with pointy ears.