There Are No Extraterrestrial Peacocks

Why humanoid aliens are pure fantasy

Humanoid aliens are a main staple of science fiction. Klaatu, Superman, Ford Prefect, Mork, Yoda, Doctor Who, Thor, and Spock are all extraterrestrial lifeforms and yet they either look completely human or like humans suffering from a slight ear deformity. (Yes, I know Spock is half-human, but that just makes him all the more implausible)

In this article, I will explain why real aliens, if they exist, will not look at all like humans.