The typical alien from any sci-fi film is usually a little green with an American football shaped head and saucer-like eyes.
But, according to one scientist, this is actually not the case. Leading evolutionary biologist, Simon Conway Morris, says aliens do actually exist, and look like us.
In his new book, The Runes of Evolution, the professor goes on to state that extra-terrestrials resemble human beings and exist on many other Earth-like planets.
If his theories are correct, this means that any of these Earth-like planets should produce and evolve both animals and plants similar to our own.
The professor says this is down to evolution not being random, but in fact a set of rigid laws which produce life that we’re used to seeing on our own planet.
But I’ll wait till contact is finally made, to make a decision.