- January 15th, 2016
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One of the more interesting ways to introduce “alien” creatures into a science fiction world is to reveal that these apparent extraterrestrials are a lot more… terrestrial… than you’d think at first glance. Earth is an ancient planet, with 4.5 billion years checked off already, and that’s a tantalizing prospect for a writer. After all, who’s to say there wasn’t a civilization present for the early days of Earth, so long ago that no trace remains? There are a lot of human civilizations that have been lost to the ages as it is, so the thought of a nonhuman one disappearing isn’t exactly outlandish. From a scientific perspective, there are plenty of reasons to think there wasn’t one–no sign of resources having been extracted from the Earth prior to us, for example–but we can always fudge this for the sake of the story. That being said, here are four alien species who are a lot less alien than you might guess.
Spoiler warning–the reveal that these aliens are actually from Earth is sometimes a plot twist, so proceed with caution.