Science fiction can sometimes border on the edge of pure fantasy in how little they pay attention to the first part of their genre. And while attempts are made to somehow cement these over the top creatures in some sort of scientific framework, you don’t need a PhD in biology to see right through it.
But let’s be honest here: we don’t quite care. We’ll watch those movies and enjoy them. Especially if the monster is exceptionally lethal, which just adds to the tension of the movie. Let’s take a look at some of these deadly science fiction monsters.
Tornadoes are lethal on land, sharks are lethal at sea. One could argue that the horrible quality of the Sharknado movies cost more lives than an actual Sharknado ever could, but for now we can pretty much all agree that a tornado made of sharks doesn’t sound like a fun time at all.
Robots created for no other reason than to wipe out humanity. Hell, they even get sent back in time to wipe out specific humans to make their entire global conquest a lot easier in the future. But then they also get sent back in time to protect us. Don’t ask too many questions, it’s all just time travel shenanigans anyway.
You know what’s worse than actual bugs? Man-sized bugs, swarming entire planets. Most arachnid sci-fi movies aren’t exceptionally popular and turn out looking more like B-movies (lookin’ at you, Starship Troopers), but they’re no less lethal. They can wipe out an entire planet in no time at all, and are usually part of a hive that’s notoriously difficult to destroy.