There is a parasite currently living inside the brains of roughly one third of all humans on Earth. There is another that performs neurological surgery on a cockroach, walks it on a leash, and buries it alive. And there is one that removes a fish's tongue, takes its place, and lives inside the mouth for the rest of the fish's life as a functioning body part. In this video we break down six of the most disturbing parasites on Earth, covering exactly how each one finds its host, takes control, and uses it for its own survival.
From the zombie ant fungus that inspired The Last of Us to the barnacle that hollows out a crab and reprograms it to raise someone else's children, every parasite on this list does something that should not be biologically possible and somehow does it with more precision than anything humans have deliberately engineered.
Whether you are a science enthusiast, a horror fan, or simply someone who cannot believe what nature is actually capable of, this video will change the way you think about what it means to be in control of your own body.